JAMB UTME - Geography - 2019

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A river that enters the sea at a gently inclined costal plain where tidal waves are weak will most likely develop into a delta. A delta is a landform that is formed when a river deposits sediment at its mouth where it meets the sea. The sediment builds up over time, creating a triangular-shaped area that extends into the sea. The gently inclined costal plain and weak tidal waves allow the sediment to accumulate and build up the delta over time. This process can lead to the creation of new land, making the delta a valuable area for agriculture and human settlement.

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In surveying, the prismatic compass is primarily used to obtain bearings of features. It is a type of compass that has a prism attached to it, which allows the user to simultaneously see the compass needle and the object being sighted through the prism. By aligning the compass with the object and reading the bearing, the prismatic compass can determine the direction or angle of the object relative to magnetic north. This information is crucial for creating accurate maps and plans, as well as for navigating and orienting oneself in the field. While a prismatic compass may be capable of measuring other factors, such as horizontal distances or inclinations, its primary function is to obtain bearings of features.

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The process by which organic matter is decomposed and synthesized to form part of the soil is known as humification. Humification is the process by which organic matter, such as dead plant material or animal waste, is broken down into simpler organic compounds by microorganisms in the soil. These simpler compounds are then combined and restructured into more complex organic molecules known as humus. Humus is a dark, organic material that is an essential component of healthy soil. It helps to retain water and nutrients, improves soil structure, and supports the growth of plants. Humification is an important part of the natural cycle of nutrient recycling in ecosystems, as it returns nutrients back to the soil for future plant growth.

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Temperature is the weather element that is controlled mainly by latitude. Latitude is a measurement of how far a place is from the equator, with the equator being at 0° latitude and the poles at 90° latitude. The closer a place is to the equator, the more direct sunlight it receives, and the warmer it tends to be. The further away from the equator a place is, the less direct sunlight it receives and the cooler it tends to be. This is why the tropics are warm and the poles are cold. So, in simple terms, latitude mainly affects temperature because it determines the amount of direct sunlight a place receives, which in turn affects its overall temperature.

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The Sudd region has been highly valued for its biodiversity. Biodiversity refers to the variety of living organisms in an ecosystem, including plants, animals, and microorganisms. The Sudd is a vast wetland in South Sudan that covers approximately 30,000 square kilometers and is home to a diverse range of flora and fauna. The wetland provides habitat for many endangered and endemic species, including birds, fish, and large mammals like the African elephant. In addition to supporting a rich array of wildlife, the Sudd is also an important source of water and food for local communities who rely on its resources for their livelihoods. Therefore, protecting the biodiversity of the Sudd is crucial for both ecological and human well-being.

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Kano is a major population center in Nigeria because of its early religious and economic significance. Kano has been a center of trade and commerce for centuries, and its location along the trans-Saharan trade routes made it an important stop for merchants and traders. Additionally, Kano has a rich history of Islam, with the city serving as a center of Islamic learning and culture. These factors, combined with its large population of Hausa-speaking indigenes, have helped make Kano one of the largest and most populous cities in Nigeria.

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A non-renewable resource is a resource that cannot be easily replenished or regenerated. An example of a non-renewable resource is mineral, such as coal, oil, and natural gas. These resources are formed over millions of years and are finite, meaning they will eventually run out. Unlike renewable resources, like wind and solar power, which can be replenished, non-renewable resources are being consumed faster than they can be replaced. This is why it's important to use these resources wisely and find alternative energy sources to preserve them for future generations.

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Lowland plains may lead to an area being densely populated because they provide fertile land for agriculture, easy transportation and communication routes, and access to water sources. Lowland plains are typically flat, which makes it easier to build roads, buildings, and other infrastructure, and also makes it more conducive for farming. In addition, lowland areas tend to have more moderate climates and are less prone to natural disasters, such as floods or landslides, which can make them more attractive to settlers. Overall, the combination of fertile land, ease of transportation and communication, access to water sources, and favorable climate can all contribute to high population density in lowland areas.

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Zambia is a country in Africa that is well-known for its production of copper. Copper is a metal that is widely used in many industries, and Zambia is one of the largest producers of this metal in Africa. In Zambia, copper is extracted from the ground and then processed into different forms, such as wire, pipes, and other products. The mining industry is a major contributor to the economy of Zambia, and the country's copper mines help to provide jobs and support the local economy.

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The Stevenson's screen is a box used to house weather instruments that measure temperature, humidity, and other meteorological variables. It is raised about one meter above the ground to avoid the heat from the ground. When the screen is placed on the ground, it can absorb and radiate heat from the ground, which can affect the accuracy of temperature measurements. By raising it one meter above the ground, the screen is more exposed to the free atmosphere and less affected by the heat from the ground. Additionally, raising the screen helps to reduce the impact of raindrops entering the instruments during heavy rainfall. The height also helps to avoid the effects of nearby trees and other obstacles that could affect wind flow around the instruments and affect the measurements. Therefore, the main reason for raising the Stevenson's screen one meter above the ground is to ensure that the weather instruments inside are measuring the temperature and other meteorological variables accurately and without interference from external factors.

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The most densely populated city which is also the capital of a country in Africa is Cairo, the capital city of Egypt. Cairo is not only the largest city in Egypt but also in the entire African continent, with a population of over 9 million people. It has a very high population density of about 48,000 people per square kilometer, making it one of the most densely populated cities in the world. Cairo is located in the northeastern part of Egypt, along the banks of the River Nile, and it has been the political and cultural center of Egypt for centuries. The city is home to several historical and cultural landmarks such as the Great Sphinx, the Pyramids of Giza, and the Egyptian Museum, which attracts millions of tourists every year. Cairo's population density can be attributed to several factors, including the city's history, economic opportunities, and population growth. The city has experienced significant population growth over the years, with people from rural areas moving to the city in search of employment opportunities and a better quality of life. Additionally, the city's location along the Nile River has also contributed to its high population density, as it has facilitated the growth of agriculture and trade in the region. Overall, Cairo's high population density is a reflection of the challenges faced by many rapidly growing cities in developing countries, including urbanization, lack of adequate infrastructure, and limited resources.

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The world's leading producer of cocoa is Ghana. Cocoa is a key ingredient used in the production of chocolate and many other sweet treats. Ghana is one of the largest exporters of cocoa in the world, with over 20% of global cocoa production coming from Ghanaian farms. Cocoa is grown in several regions of the country, with the Ashanti region being the largest cocoa-producing region in Ghana. The favorable climate and soil conditions in Ghana make it an ideal location for growing cocoa, which is why it has become such an important industry in the country. Cocoa production plays a significant role in the Ghanaian economy, providing jobs and income for many people.

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The highest lands in Nigeria are found on the Mambilla Plateau. The Mambilla Plateau is located in Taraba State in the eastern part of Nigeria, and it is the highest plateau in Nigeria. The plateau has an average elevation of about 1,524 meters (5,000 feet) above sea level, with some parts reaching as high as 1,830 meters (6,000 feet). The Mambilla Plateau is a popular tourist destination because of its cool climate, scenic beauty, and rich cultural heritage. The plateau is home to several ethnic groups, including the Mambilla people, who have a unique culture and traditional way of life. The plateau is also known for its rich agricultural potential and is a major producer of tea, coffee, and other crops. In summary, the Mambilla Plateau is the highest land in Nigeria, and it is located in Taraba State in the eastern part of the country. It has a high elevation and is a popular tourist destination known for its cool climate, scenic beauty, and rich cultural heritage.

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The desert country with high population density supported by irrigation is Egypt. Egypt is located in the northeastern part of Africa and is mostly covered by the Sahara desert. Despite the desert conditions, Egypt has a high population density due to the Nile river that runs through the country. The Nile river provides water for irrigation, which has allowed for the cultivation of crops and supported the growth of a population in what would otherwise be an uninhabitable region. The ancient Egyptians were able to take advantage of the Nile's seasonal floods and develop a complex system of canals and irrigation to grow crops. Today, modern irrigation techniques have allowed Egypt to continue to support a high population density and grow crops such as wheat, cotton, and fruits.

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Nigeria has entered into trade agreements in petroleum products and gas with some West African countries. This means that Nigeria has agreed to trade its petroleum products and gas with certain countries in West Africa. The exact countries involved in the agreement may vary, but the goal is to increase trade and cooperation between Nigeria and its neighbors in West Africa.

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The standard time of a country is determined by the longitude of its location on the Earth. A time zone is a region that has the same standard time, and time zones are typically defined as an offset from the Coordinated Universal Time (UTC). In this case, the country has a standard time of GMT + 1 hour, which means it is one hour ahead of the UTC. The longitude that corresponds to this time zone is the one located 15° east of the Prime Meridian, which runs from the North Pole to the South Pole and passes through the Royal Observatory in Greenwich, London, England. So, the local time adopted by the country is 15°E.

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The climate described, with a long wet season of up to 10 months, high annual rainfall of 3000mm, and a mean monthly temperature of at least 26°, is most likely a tropical monsoon climate (Am). Tropical monsoon climates are characterized by a distinct dry season and a long, wet season, with most of the precipitation falling during the wet season. The mean monthly temperature in this climate is high, generally above 18°C, and typically exceeds 26°C during the wet season. In contrast, tropical humid (Af) climates are characterized by a year-round high rainfall, with no distinct dry season, and mean monthly temperatures generally above 18°C. Tropical wet and dry (Aw) climates have distinct dry and wet seasons, with the dry season lasting longer than in the monsoon climate. Warm humid subtropical (Cfa) climates have hot summers and cool winters, with precipitation distributed throughout the year. These climates are found in the subtropics and have a mean temperature of at least 10°C in the coldest month.

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The pair of cities that have both a seaport and an international airport are Lagos and San Francisco. Lagos is the largest city in Nigeria, located on the coast of the Atlantic Ocean, and it is home to the Lagos Port Complex, which is one of the largest and busiest ports in Africa. Lagos is also served by the Murtala Muhammed International Airport, which is the main airport in Nigeria and serves as a hub for many airlines. San Francisco is a city in California, United States, located on the coast of the Pacific Ocean. The city is served by the Port of San Francisco, which is the fourth largest port in California and handles a variety of cargo, including containers, automobiles, and dry bulk. San Francisco is also served by the San Francisco International Airport, which is one of the busiest airports in the United States and a major gateway to Asia and the Pacific. Kampala and Mombasa, Rio de Janeiro and Johannesburg, and New York and Warri do not have both a seaport and an international airport. Kampala is the capital city of Uganda, located inland and does not have a seaport. Mombasa is a port city in Kenya located on the coast, but its airport, Moi International Airport, serves only domestic and regional flights. Rio de Janeiro is a coastal city in Brazil, known for its beautiful beaches and famous landmarks. The city has a seaport, the Port of Rio de Janeiro, which is one of the busiest ports in Brazil, but its airport, the Rio de Janeiro/Galeão International Airport, serves mainly domestic and regional flights. Johannesburg is the largest city in South Africa and a major economic hub on the African continent, but it is not located on the coast and does not have a seaport. The city is served by the O.R. Tambo International Airport, which is the busiest airport in Africa and a major hub for international flights. New York is a major city on the East Coast of the United States, located on the Atlantic Ocean, and is home to the Port of New York and New Jersey, one of the largest ports in the world. However, its main airport, the John F. Kennedy International Airport, is an international airport that serves numerous destinations worldwide, but it does not have a seaport nearby. Warri is a city in Nigeria, located in the Niger Delta region, and is home to the Warri Port, which is one of the major ports in Nigeria. However, its airport, the Osubi Airstrip, is a small airport that serves only domestic flights.

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Warm ocean currents flow from the equator to the poles. These currents carry warm water from the equator, where the water is heated by the sun, to areas closer to the poles, where the water releases heat to the atmosphere and cools down. This movement of warm water helps regulate the Earth's climate by transferring heat from the equator to other parts of the planet.

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The main catalyst in the economic development of Japan was a combination of factors, including a large pool of skilled manpower, favorable geographic location with extensive coastlines conductive to shipping, and abundant mineral deposits that allowed for the growth of various industries. Additionally, the government played a crucial role in promoting economic growth through policies that encouraged investment and trade. The combination of these factors allowed Japan to rapidly develop into one of the largest and most technologically advanced economies in the world.

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One way to overcome the problem of irregular levels of water in river transport is by building locks and canals. Locks are structures that allow boats and ships to pass from one water level to another. They work by closing and filling with water, which raises or lowers the water level inside the lock to match the water level on the other side. This allows boats and ships to safely navigate through areas where the water level is different. Canals, on the other hand, are man-made waterways that are built to connect two waterways or to bypass a stretch of river with difficult navigational conditions. By providing a controlled and stable water environment, locks and canals can greatly improve the reliability and efficiency of river transport.

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The rock that is formed by wood subjected to pressure and heat is called "lignite". Lignite is a type of coal that is considered the lowest rank of coal due to its relatively low heat content and carbon content. Lignite is formed from partially decomposed plant material that has been subjected to increasing amounts of pressure and heat over time. As the plant material becomes buried and compressed, it eventually transforms into lignite through a process called coalification. Therefore, lignite is a sedimentary rock that is formed from the compressed and heated remains of plants, including wood. It is typically brownish-black in color and has a relatively low density compared to other types of coal.

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A cirque is an example of a landform produced by glaciation. A cirque is a bowl-shaped depression on a mountainside with steep walls formed by glacial erosion. As a glacier moves down a mountain, it erodes the bedrock through a combination of abrasion and plucking. Abrasion occurs when the glacier grinds against the bedrock and wears it away, while plucking occurs when the glacier freezes onto the bedrock and pulls it away as the glacier moves downhill. Over time, this erosion can form a deep, steep-sided hollow or cirque on the mountainside. Cirques are often the starting point for the formation of other glacial landforms, such as u-shaped valleys and horn peaks. As a glacier continues to erode the mountainside, it can deepen and widen the cirque, creating a u-shaped valley. If multiple glaciers erode back-to-back cirques on a single mountain, it can leave behind a horn peak or a jagged, triangular peak at the mountain summit. Overall, cirques are a classic example of a landform produced by the slow, powerful forces of glaciation.

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Lake Kivu and Lake Malawi are related in that they are both rift valley lakes. Rift valley lakes are formed when tectonic plates move apart, creating a depression that fills with water. Lake Kivu is located in the Albertine Rift, which is part of the East African Rift System, while Lake Malawi is located in the East African Rift. Despite their similarities, the two lakes are located in different parts of the African continent - Lake Kivu is located in Rwanda and the Democratic Republic of Congo, while Lake Malawi is located in Malawi, Tanzania, and Mozambique.

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The best technique to prevent soil erosion in a humid, gently sloping area is contour ridging. Contour ridging involves creating ridges that run along the contour lines of the slope, which helps to slow down the flow of water across the surface of the soil. This technique helps to trap water, reduce its speed, and allow it to penetrate into the soil. By reducing the speed of water, contour ridging also helps to reduce the amount of soil that is carried away by the water, which reduces erosion. Terrace cultivation and intercropping can also be effective techniques for reducing erosion, but they are generally better suited to steeper slopes. Wind breakers can help to reduce erosion caused by wind, but they are not as effective for preventing erosion caused by water. In summary, contour ridging is the best technique for preventing soil erosion in a humid, gently sloping area because it helps to slow down the flow of water and reduce erosion, and it is well-suited to this type of terrain.

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The survival of an organism in a natural ecosystem depends largely on its adaptation to prevailing conditions. This means that the organism must be able to adapt to the environment in which it lives, in order to be able to survive and reproduce. This includes factors such as the availability of food and water, the presence of predators, the climate, and other environmental factors. When an organism is able to adapt to its environment, it is better able to compete with other organisms and increase its chances of survival.

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Sugar Plantations in Africa are most highly developed in the lowlands of Natal and Mozambique. These two regions have warm climates and fertile soils, which are ideal conditions for growing sugarcane, a plant used to make sugar. The lowlands of Natal and Mozambique are also close to ports, which makes it easier to export the sugar that is produced. Because of these factors, the sugar industry has flourished in these regions, making them the most highly developed areas for sugar production in Africa.