JAMB UTME - Geography - 2024

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The term over-population is best defined as the situation where the population exceeds available resources. This means that the number of people in an area is greater than the resources available to sustain them, such as food, water, shelter, and health care. It can lead to various problems including poverty, environmental degradation, and a strain on infrastructure. Over-population occurs when the existing resources cannot meet the needs of the people, resulting in hardship and reduced quality of life.

In contrast, having a birth rate equal to the death rate implies a stable population over time, not necessarily over-population. Increasing birth rate and decreasing infant mortality can contribute to population growth, but they do not solely define over-population. Finally, high population density refers to a large number of people living in a small area, which could lead to over-population if resources are insufficient, but high density alone does not equate to over-population.

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The environmental hazard that is due primarily to human activities is ozone depletion.

The ozone layer is a protective shield in the Earth's stratosphere that absorbs most of the Sun's harmful ultraviolet radiation. The thinning of the ozone layer is mainly caused by the release of man-made chemicals. The most significant contributors to this environmental hazard are chlorofluorocarbons (CFCs) and other ozone-depleting substances (ODS) which have been used in refrigeration, air conditioning, foam production, and aerosol propellants. When these chemicals reach the stratosphere, they break down ozone molecules, leading to what is known as the "ozone hole."

In contrast, the other environmental hazards listed—hurricanes, earthquakes, and volcanic eruptions—are natural phenomena. While human activities can influence the severity or impact of these events, such as through climate change exacerbating the intensity of hurricanes or human settlement in earthquake-prone areas, they are not primarily caused by human actions.

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On June 21st, when the sun is overhead at the Tropic of Cancer, places in the Northern Hemisphere experience a phenomenon often referred to as the **Summer Solstice**. This day marks the point when the Northern Hemisphere is tilted closest to the Sun. As a result, it receives the most direct sunlight compared to any other day of the year.

During this time, the day is significantly longer than the night. This is because the Sun travels a longer path through the sky, remaining visible for a larger portion of the 24-hour day. Therefore, areas in the Northern Hemisphere experience a **longer day and shorter night**.

This occurrence is most noticeable the further north you go, with some regions near the Arctic Circle experiencing the phenomenon known as the "Midnight Sun," where the sun is visible at midnight.

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In terms of the largest timber producers in Africa, it is important to understand which nation has significant timber resources and an established forestry industry. Zaire, known today as the Democratic Republic of Congo (DRC), is recognized as the largest timber producer in Africa.

The Democratic Republic of Congo has extensive forest coverage, including parts of the Congo Basin, which is the second-largest rainforest in the world after the Amazon. This vast expanse of forestland provides an abundance of timber resources. The country's forestry industry has developed around this natural resource, contributing significantly to its economy.

Other countries like Ghana and Nigeria also have substantial forests and timber industries, but they do not match the scale of Zaire. Malawi, on the other hand, is less known for timber production compared to these countries.

In summary, considering its massive forest expanse and established timber industry, Zaire (the Democratic Republic of Congo) stands out as Africa's largest timber producer.

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The ocean that connects Europe and America is the Atlantic Ocean.

Here's a simple explanation: The Atlantic Ocean is a massive body of water that lies between the continents of Europe and Africa to the east and the Americas to the west. This ocean is one of the world's five major oceans and is the second largest after the Pacific Ocean. Historically, the Atlantic Ocean has been significantly important as a route for ships traveling between Europe and the Americas, playing a crucial role in exploration, commerce, and cultural exchanges.

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Mercury and Venus are the two planets that lie between the Sun and Earth.

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Quartzite, schist, and marble are all examples of metamorphic rocks.

Here's why:

• Metamorphic Rocks: These are rocks that have undergone a transformation due to intense heat and pressure. This process, called metamorphism, alters their original form or mineral composition without melting them.
• Quartzite: This forms from sandstone, a sedimentary rock, that has been exposed to heat and pressure, resulting in a very hard, durable rock.
• Schist: This rock is typically formed from shale, another sedimentary rock, or sometimes from basalt, an igneous rock. It has a shiny appearance due to the presence of mica minerals.
• Marble: This is formed from limestone, a sedimentary rock that undergoes recrystallization under high heat and pressure, resulting in a rock that is often used in sculpture and architecture.

Sedimentary Rocks are formed from the accumulation of sediments, while Igneous Rocks are formed from the cooling and solidification of magma or lava. Volcanic rocks are a subset of igneous rocks that specifically form from lava at the earth's surface. Thus, quartzite, schist, and marble do not fall under these categories.

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The line of latitude that divides the Earth into two hemispheres is the Equator. The Equator is an imaginary line that is drawn around the middle of the Earth. It is equidistant from the North and South Poles, and it is located at 0 degrees latitude.

Because it sits exactly halfway between the poles, the Equator splits the Earth into two equal parts: the Northern Hemisphere and the Southern Hemisphere. The land and water areas located to the north of the Equator make up the Northern Hemisphere, while those located to the south comprise the Southern Hemisphere.

The importance of the Equator is not just in the division of hemispheres; it also plays a crucial role in climate. Regions located near the Equator typically experience a tropical climate with minimal temperature variations year-round.

In contrast, lines like the Tropic of Cancer and the Tropic of Capricorn are found north and south of the Equator, respectively, and they define the limits of the tropical zone. The Antarctic Circle is situated further south and marks a different climatic boundary.

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In the context of settlement types and their sizes, the largest is a megalopolis.

Let me explain this in simple terms:

• **City:** A city is a large and permanent settlement with a significant population and infrastructure. It is larger than a town but smaller than the other types of settlements listed here.
• Agglomeration: This term generally refers to an area where multiple cities or towns are grouped together, sharing infrastructure and services but still remaining as distinct entities. It is more about the process of these settlements growing together.
• Conurbation: A conurbation is a region that consists of a number of cities or towns which have merged together over time through population growth and expansion. They are physically connected but maintain individual identities.


• Megalopolis: A megalopolis is a massive urban region made up of multiple large cities and their surrounding areas, which have expanded to merge into one continuous urban area. It's much larger than a conurbation. One classic example is the Northeastern megalopolis in the USA, which includes cities like Boston, New York City, Philadelphia, Baltimore, and Washington, D.C.

In summary, of all the settlement types listed, a megalopolis is the largest as it comprises multiple, even significant urban areas that have expanded to form a vast, continuous area.

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Copper is an important raw material in the electrical industry. This is because copper is an excellent conductor of electricity, which means it allows electrical current to flow through it easily with minimal resistance. This property makes copper ideal for use in electrical wiring, motors, transformers, and other electrical components. Additionally, copper is highly durable, resistant to corrosion, and versatile, which further enhances its usefulness in electrical applications. The electrical industry relies heavily on copper to ensure reliable and efficient power transmission.

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When a ship appears over the distant horizon, the mast is seen before the hull. This phenomenon can be explained by considering the shape of the Earth and how light travels.

The Earth is a large sphere, and because of its curvature, objects that are farther away become obscured by the Earth's surface as they move over the horizon. The upper parts of an object, such as the mast of a ship, are further away from the Earth's surface compared to the lower parts, like the hull. As a result, the top parts become visible first as an object like a ship comes over the horizon.

Therefore, due to the curvature of the Earth, the mast, being higher and more elevated, comes into view before the hull as the ship approaches from a distance.

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The system of cultivation of tropical commercial crops estates is known as plantation agriculture.

Plantation agriculture is a type of farming where a single crop, often a cash crop, is grown on a large area of land. This method is commonly seen in tropical areas where conditions favor the growth of certain commercial crops like tea, coffee, rubber, cocoa, and palm oil.

The defining characteristics of plantation agriculture include:

• Large Scale Production: Crops are grown on expansive estates, which enable significant quantities to be produced.
• Monoculture: Typically, only one type of crop is cultivated for commercial purposes at a time, making it a form of monoculture.
• Capital-Intensive: It often requires heavy investment in machinery, infrastructure, and labor.
• Export-Oriented: The crops grown are usually intended for international trade, contributing to the economy of the region.
• Scientific Techniques: Utilizes advanced agricultural technologies and scientific methods to maximize yield and productivity.

This system significantly contributes to the economies of tropical regions by generating foreign exchange and providing employment opportunities.

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One of the major problems in agricultural development in Nigeria is the insufficient storage facilities.

The agricultural sector in Nigeria often faces difficulties after crops are harvested. Poor storage facilities mean that a substantial portion of the agricultural produce is lost due to spoilage, pests, or damage. This is a significant challenge because:

• **Loss of Produce:** Without adequate storage, farmers cannot preserve excess produce for future use, which leads to food waste and instability in food supply.
• **Reduced Income:** When farmers are unable to store their produce, they may have to sell it quickly and often at lower prices, immediately after harvest. This reduces their potential earnings.
• **Market Imbalance:** Lack of storage facilities can lead to an overflow of produce in the market right after harvest and a shortage during off-season periods, causing fluctuating prices.
• **Quality Degradation:** Poor storage facilities can lead to the degradation of the quality of produce, which in turn affects marketability and consumer trust.

Improving storage facilities would provide farmers with the ability to manage their production better, ensuring a more consistent supply of agricultural products and contributing significantly to the development of agriculture in Nigeria.

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The port described in the statement is an entrepôt. An entrepôt is a type of port or a trading post where goods are imported, stored, and then re-exported. It acts as a key transfer point in international trade, allowing products to be redistributed to neighboring countries. This concept operates on the idea that items arrive in bulk and then are sent out again, perhaps even modified or repackaged, often without the goods being subject to customs duties. In essence, an entrepôt streamlines the movement of goods, facilitating international commerce and boosting trade networks.

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When wet and dry bulb thermometers, which together form a psychrometer, record the same temperature, it indicates that the air is saturated. This means that the air has reached its maximum capacity to hold water vapor, also known as reaching the dew point.

Normally, the wet bulb thermometer, which has a cloth soaked in water wrapped around it, shows a lower temperature than the dry bulb thermometer because evaporation cools it down. However, when the temperatures are the same for both thermometers, no evaporation is taking place. This is because the air cannot accept more water vapor, pointing to a humidity level of 100%, which is known as saturation.

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Mechanical weathering is the process of breaking down rocks into smaller pieces without changing their chemical composition. There are several causes of mechanical weathering, but not all processes that affect rocks are related to mechanical weathering.

The options listed include:

Temperature changes: This is a cause of mechanical weathering. When rocks are exposed to fluctuating temperatures, they expand when it's hot and contract when it's cold. Over time, these repeated expansions and contractions can cause the rocks to crack and break apart.

Frost action: Also known as freeze-thaw weathering, this is another form of mechanical weathering. Water can seep into cracks in the rocks, and as temperatures drop, the water freezes and expands. This expansion exerts pressure on the rock, gradually breaking it apart.

Alternate wetting and drying: This causes mechanical weathering by changing the volume of clay minerals found in some rocks. When these rocks get wet, the clay swells, and when dry, it contracts. This constant expansion and contraction lead to mechanical breakdown.

Rain action: This is not primarily a cause of mechanical weathering. While rain can contribute to weathering processes, such as chemical weathering where it reacts with minerals in rocks to form new compounds, its primary role in mechanical weathering is minimal compared to other factors.

Therefore, among the options provided, rain action is the one that is not a direct cause of mechanical weathering.

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The major source of power for most terrestrial ecosystems is solar energy.

Let me explain why:

Solar energy is the energy that comes from the sun. It is critical for life on Earth as it powers the process of photosynthesis, which is used by plants, algae, and some bacteria to convert light energy into chemical energy. During photosynthesis, these organisms take in carbon dioxide from the air and water from the soil, and with the help of sunlight, they produce glucose and oxygen. This process provides the necessary energy and organic material to support life.

Here is why it is important:

• Primary Producers: Solar energy fuels the primary producers (mainly plants) that form the base of the food chain. They use sunlight to create food that herbivores eat, and these herbivores are then consumed by carnivores. Without the energy provided by the sun, this foundational level of the food web would not exist, and all life forms that depend on plants, either directly or indirectly, would not survive.
• Energy Transfer: The energy captured by plants is transferred through various trophic levels as different organisms consume one another. Each level receives energy that originated from the sun, making solar energy the primary driving force of energy flow in ecosystems.
• Climate Regulation: Sunlight helps regulate Earth's climate and atmospheric conditions, influencing temperature and weather patterns. These conditions are necessary for the survival of various ecosystems and their inhabitants.

In comparison, other energy sources like geothermal energy, nuclear power, and hydroelectric power play relatively minor roles in terrestrial ecosystems. These energies are not as directly involved in powering the basic life-sustaining processes as solar energy is. Therefore, it is clear that solar energy is the predominant power source for life on land.

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A settlement developed at the meeting point of roads is known as a nodal town.

Let's break this down in a simple way:

• A nodal town is a type of settlement that forms at a junction or intersection where different roads, railways, or other routes meet. It acts like a central point or a node, where transportation and communication lines converge.
• These towns are important because they serve as transportation hubs, making it easy for people and goods to travel in various directions.
• The meeting of different routes encourages trade, commerce, and interactions between different regions, leading to the town’s growth and development.

In contrast, a port town develops around a harbor, a confluence town forms where rivers meet, and a gap town evolves in mountain pass regions. Thus, a town at the meeting point of roads is distinctly identified as a nodal town.

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The outer layer of the Earth is called the crust. Let's understand this in simple terms:

The Earth is made up of several layers. Imagine the Earth like an onion with different layers, with each layer varying in composition and physical properties. The outermost of these layers is the crust.

The crust is similar to a thin shell around the Earth. It is very thin compared to the other layers and can be thought of as the Earth's skin. It is made up of solid rocks and minerals and is where we live and see landscapes, mountains, and oceans.

Below the crust is the mantle, which is much thicker and composed primarily of semi-solid rock. Therefore, when talking about the outermost layer, we refer specifically to the Earth's crust.

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To determine which option is not a proof of the Earth's spherical shape, let's examine each one:

Twilight and Dawn: Twilight and dawn occur when the Earth rotates, and the sun is below the horizon. The gradual increase or decrease in light during these times is due to the atmosphere bending or scattering sunlight. While this phenomenon is observed worldwide, it by itself doesn't directly indicate a spherical Earth. Instead, it emphasizes the Earth's rotation, which is consistent with a spherical shape.

Lunar Eclipse: During a lunar eclipse, when the Earth is directly between the sun and the moon, the Earth casts a shadow on the moon. This shadow is observed as a circular shape, which provides direct evidence that the Earth is spherical.

Aerial Photograph: Aerial photographs, when taken from a sufficient altitude, can show the curvature of the Earth. Photographs taken from high altitudes give visual evidence of the Earth's curved surface, supporting the spherical shape.

Sunrise and Sunset: The occurrence of sunrise and sunset happens due to the Earth's rotation on its axis. As the Earth rotates, different parts of the world experience sunlight and darkness. This rotation is consistent with the global experience of a spherical planet.

Conclusion: While all the listed phenomena have some connection to the Earth's rotation and shape, **twilight and dawn** do not directly serve as a proof of the Earth's spherical shape. They are more indicative of the rotational aspect and atmospheric effects rather than the shape itself.

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A conurbation is a term used to describe a group of cities, towns, or urban areas that have merged together to form a single urban entity, while still retaining their individual identities.

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The nearest planet to the Sun is Mercury.

Here's a simple explanation: The Solar System consists of eight major planets, which include Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune, arranged in that order from closest to the Sun to farthest. Pluto, once considered the ninth planet, has been reclassified as a "dwarf planet" and is well beyond Neptune.

Mercury, being the closest planet to the Sun, has a very short orbit compared to other planets. It completes one orbit around the Sun in just about 88 Earth days. Because of its proximity to the Sun, Mercury experiences significant temperature variations, extremely hot during the day and very cold at night.

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To determine which of the listed items is not an element of climate, we need to understand what elements constitute climate. **Climate** refers to the average weather conditions of a place over a long period, typically 30 years or more. The primary elements that define climate include **temperature**, **precipitation**, **humidity**, **wind**, and **air pressure**. Let's go through the choices given:

Precipitation: This is an important element of climate as it refers to any form of moisture that falls from the atmosphere to the earth's surface, such as rain, snow, or sleet.

Air pressure: This is a crucial element of climate because it influences wind patterns and weather systems such as cyclones and anticyclones.

Altitude: This is not an element of climate; rather, it is a geographic factor that influences climate. As you go higher in altitude, temperatures typically decrease, which can affect the climate of a region, but altitude itself is not a climatic element.

Temperature: This is a fundamental element of climate, affecting the average warmth or coldness of a place over time.

Therefore, **altitude** is not an element of climate, but a factor that can influence the other elements like **temperature** and **precipitation**.

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The solar system is a vast and fascinating system that centers around the Sun, a star that provides light and heat to all the celestial bodies that revolve around it. Understanding what other components make up the solar system is essential for grasping how our cosmic neighborhood operates.

There are eight major planets that orbit around the Sun. These planets, in their order from the closest to the farthest from the Sun, are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. Each of these planets varies in size, composition, and distance from the Sun, but they all follow elliptical orbits.

In addition to the eight recognized planets, there are also dwarf planets, such as Pluto. Pluto was previously considered the ninth planet until it was reclassified as a dwarf planet by the International Astronomical Union in 2006 due to updated criteria that define what constitutes a planet.

Besides planets and dwarf planets, the solar system also contains a variety of other celestial bodies. These include moons, which are natural satellites that orbit planets; asteroids, which are small rocky bodies primarily located in the asteroid belt between Mars and Jupiter; and comets, which are icy bodies that have eccentric orbits bringing them close to the Sun occasionally.

In summary, the solar system comprises the Sun and eight planets, alongside other celestial bodies such as dwarf planets, moons, asteroids, and comets. Understanding the composition of the solar system helps us appreciate the complexity and grandeur of our cosmic environment.

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One characteristic that distinguishes urban settlements from rural settlements is that urban settlements are areas of secondary and tertiary activities.

Let's break this down:

• Urban Settlements: These are typically characterized by higher population density and more developed infrastructure. The economic activities here are primarily focused on secondary activities, such as manufacturing and industry, and tertiary activities, such as services like banking, education, healthcare, and retail. These activities are associated with more advanced stages of economic development and are common in cities and larger towns.


• Rural Settlements: On the other hand, rural areas are often associated with primary activities, such as agriculture, fishing, forestry, and mining. These activities involve direct extraction or harvesting of natural resources and are more common in less densely populated areas like villages or countryside.

To summarize, the primary distinction is that urban settlements focus on secondary and tertiary activities, providing goods and services, ultimately making them different in function and character from rural settlements, which focus more on primary activities.

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A line joining places having an equal degree of cloudiness is called an isoneph.

To understand this better, let's break down some related terms:

• Isotherm: These are lines on a map that connect points having the same temperature at a given time or on average over a given period.
• Isohyet: These are lines that connect areas receiving equal amounts of precipitation, such as rainfall.
• Isoneph: These are lines that link points experiencing the same degree of cloud cover or cloudiness.
• Isobar: These are lines on a weather map that connect points of equal atmospheric pressure.

So, when we are specifically talking about cloudiness, the correct term and line is an isoneph. This is useful in meteorology for visualizing and analyzing patterns of cloud coverage across different regions.

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The innermost section of the Earth is the core. The Earth is composed of several layers, starting from the surface and moving inward. These layers, from the outside to the inside, are the crust, mantle, outer core, and inner core.

1. Crust: This is the outermost layer of the Earth. It is very thin compared to the other layers and is where we live. The crust is made up of solid rocks and minerals.

2. Mantle: Located beneath the crust, the mantle is composed of semi-solid rock that flows slowly. It is the largest layer of the Earth by volume.

3. Core: The core itself is divided into two parts: the outer core and the inner core. The outer core is made of molten, liquid metal, while the inner core is made of solid metal, primarily iron and nickel. The core is the hottest section of the Earth, with extremely high temperatures and pressures. It is situated at the center of the Earth and provides heat that helps power the movement of tectonic plates and causes volcanic activity.

Therefore, when we refer to the innermost section of the Earth, we are specifically talking about the core, and more accurately, the inner core.

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The mountains formed as a result of compressional forces in the Earth's crust are known as fold mountains. Fold mountains are created when two tectonic plates collide, and the compressional forces involved cause the layers of the Earth's crust to crumple and fold.

Imagine it like pushing two pieces of paper together from opposite ends; they begin to crumple and form folds. Similarly, when large sections of the Earth's crust are subjected to immense pressures from the sides, they buckle and bend into wave-like structures called folds. These folds then rise over time to form fold mountains.

Some of the most well-known mountain ranges in the world, like the Himalayas, the Alps, and the Rockies, are examples of fold mountains.

In summary, fold mountains are formed by the compression and folding of the Earth's crust, making them a direct result of tectonic forces that push the land upwards to form mountains.

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Pie charts are not suitable for representing data with wide extremes, as they are better suited for showing proportions and percentages.

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A geyser is best described as a fountain of superheated steam. This natural phenomenon occurs when water that is trapped beneath the Earth's surface is heated by geothermal activity, such as volcanic activity, deep underground. As the water is heated, it turns into steam and builds up pressure. This pressure eventually forces the steam and hot water to be expelled violently from the ground in a dramatic outburst, creating a fountain-like effect.

Let's break this down a bit more:

• A geyser consists of a network of underground channels filled with water. The heat from molten rock (magma) heats the water in these channels.
• As the water heats, it expands and turns into steam. However, due to the depths, the water above creates pressure that allows the water below to reach temperatures above the normal boiling point.
• When this pressure is released, often when bubbles of steam rise to a narrow section of the channel nearest the surface, the superheated water violently boils, pushes through the surface, and escapes as steam and hot water – hence, a fountain of superheated steam.

This distinct eruption is what characterizes a geyser and differentiates it from other geothermal features like hot springs or thermal pools, which do not erupt but simply release heat gradually into the water.

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The development of hydro-electric power in Nigeria is least affected by the availability of suitable sites for dams. While suitable sites are necessary for building dams, other factors such as a regular supply of water and high mountains are more critical for hydro-electric power development.

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The high population density in the Nile Valley is best explained by the presence of rich alluvial soil. The Nile River floods annually, depositing nutrient-rich silt along its banks, which creates fertile land perfect for agriculture. This fertile land supports farming, which is the primary means of livelihood for many people in the region. The availability of fertile soil allows for the cultivation of crops such as wheat, barley, and other foodstuffs, supporting a large population by providing food resources and encouraging human settlement. This agricultural productivity attracts people to settle, leading to a higher population density. It is not primarily due to climate, migration from Europe, or oil fields.

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The **Gezira Scheme** and the **Manaquil Extension** are famous for the cultivation of **cotton**. These agricultural projects are located in **Sudan** and are among the largest irrigation projects in the world dedicated to agriculture.

The Gezira Scheme utilizes the waters of the **Blue Nile** to irrigate the land, making it suitable for growing cash crops. The scheme's infrastructure, including an extensive network of canals and ditches, supports the broad-scale cultivation of cotton. Similarly, the Manaquil Extension enhanced the irrigation reach, further bolstering cotton agriculture.

**Cotton** is highly suitable for growth in the hot climate of Sudan, especially under irrigation, as it requires a long growing season with plenty of sunshine and water. This makes it an ideal crop for the region, contributing significantly to Sudan's economy through both local use and export. Additionally, cotton plays a crucial role in the livelihood of many farmers in the region, being a major source of income.

Cultivating cotton in **Gezira** and **Manaquil** not only supports the textile industry but also generates employment for thousands of people engaged in farming, processing, and trade.

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The bush fallowing system in West Africa is not very economical in the use of land. Bush fallowing involves leaving land fallow for several years to regain its fertility, which can lead to inefficient use of land.

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The major industrial zones of Nigeria owe their origin mainly to the presence of cash crops. This is because, historically, Nigeria's economy largely depended on agriculture, and the availability of these cash crops provided a foundation for establishing industries. For example, regions where cash crops such as cocoa, palm oil, rubber, and groundnuts were abundantly grown became focal points for industries.


These crops were in high demand both locally and internationally, encouraging the establishment of processing industries to add value before export. This led to the development of infrastructure and contributed to the economic growth of these regions.


Thus, the presence of cash crops has played a significant role in shaping the industrial landscape of Nigeria by attracting investments, creating jobs, and fostering economic development in the respective regions.

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Life expectancy refers to the average age at which people die. It is a statistical measure that estimates the average number of years a person is expected to live based on current mortality rates. Life expectancy can vary significantly based on various factors such as geography, lifestyle, healthcare quality, and socioeconomic status. It serves as an important indicator of a population's overall health and quality of life.

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There is no such thing as a "mountain of accumulation". The other options - conical mountain, block mountain, and fold mountain - are all types of mountains.

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The part of the earth's crust that is covered by oceans and seas is called the hydrosphere.

Let's break it down logically:

• The hydrosphere specifically refers to all of the water found on, under, and over the surface of the Earth, including oceans, seas, rivers, lakes, and even water in the atmosphere.
• It covers about 71% of the Earth's surface, making it a significant and distinctive part of the planet.
• The stratosphere and the ionosphere are layers of the Earth's atmosphere, not related to water or Earth's crust coverage.
• The biosphere refers to all regions of the Earth occupied by living organisms. While it includes oceans and seas, it is not specific to just water coverage.

Therefore, the term that correctly describes the part of the Earth's crust covered by water bodies like oceans and seas is the hydrosphere.

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The activity that requires a large area of land usually in thousands of hectares, availability of water either in the form of rain or irrigation, and a high capital outlay is plantation agriculture. Let me explain why:

Large Area of Land: Plantation agriculture involves the cultivation of crops on a very large scale, often requiring thousands of hectares. This is necessary to achieve economies of scale and produce significant quantities of a specific crop such as tea, coffee, sugarcane, rubber, or oil palm.

Availability of Water: Crops grown on plantations need adequate water supply to thrive. This can be provided by regular rainfall or through irrigation systems. Thus, plantations are often located in regions with favorable climatic conditions or equipped with efficient water management systems.

High Capital Outlay: Establishing a plantation requires a significant initial investment. This includes procuring land and machinery, setting up irrigation systems, and maintaining infrastructure. Furthermore, plantations often rely on the employment of many workers and the use of advanced agricultural techniques, which also contribute to the high cost.

In contrast, the other activities mentioned do not primarily rely on these three factors to the same extent. For example, lumbering involves harvesting trees, which may also require substantial land area, but does not necessarily need irrigation. Tourism industry might require watering systems for landscaping, but its focus is more on site attractions. Finally, while mining requires high capital outlay and can cover large areas of land, it does not depend on the availability of irrigation systems like plantation agriculture does.

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The location of a cement factory is primarily influenced by its proximity to the source of raw materials. Cement production involves the use of abundant natural resources such as limestone, clay, and rock, which are crucial ingredients in the manufacturing process. These raw materials are usually heavy and bulky, making transportation costly. Therefore, by situating the cement factory near these resources, transportation costs can be minimized, leading to more efficient and cost-effective production. This proximity also ensures a steady and reliable supply of raw materials, which is essential for uninterrupted production.