JAMB UTME - Geography - 2023

Exports from Mali are most likely to pass through the sea port at

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Exports from Mali are most likely to pass through the sea port at Abidjan. Abidjan is the **largest port in West Africa** and is strategically located on the Gulf of Guinea. It has extensive infrastructure, including deep-water berths and modern cargo handling equipment, making it capable of handling large volumes of goods. Mali is a landlocked country, meaning it does not have direct access to the sea. Therefore, to export its goods, Mali needs to rely on neighboring countries with access to the sea. Abidjan, located in Ivory Coast, is the **most convenient sea port for Mali**. It is relatively close in proximity to Mali and has well-developed road and rail connections, making it an ideal choice for transporting goods from Mali to the port. Furthermore, Abidjan offers a wide range of services to facilitate trade, including customs clearance, storage facilities, and efficient cargo handling. It is also a hub for international shipping, with connections to various ports worldwide, enabling Mali to access global markets for its exports. In summary, due to its geographical proximity, well-developed infrastructure, and convenient transportation links, exports from Mali are most likely to pass through the sea port at Abidjan.

The part of the earth crust covered by water bodies is known as the

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The part of the earth's crust covered by water bodies is known as the hydrosphere. The hydrosphere includes all the water on Earth, including oceans, seas, lakes, rivers, and even groundwater and atmospheric water vapor.
The hydrosphere plays a crucial role in supporting life on Earth. It provides habitats for a wide range of organisms and helps regulate the planet's climate. The hydrosphere is also a vital source of freshwater, which is essential for drinking, agriculture, and various other human activities.
The term "sial" refers to the upper part of the earth's crust, which is made up of lighter rocks like granite and makes up the continents. Therefore, it is not the correct answer for this question.
The stratosphere, on the other hand, is a layer of the Earth's atmosphere located above the troposphere. It extends from about 10 kilometers (6.2 miles) to 50 kilometers (31 miles) above the Earth's surface. The stratosphere contains the ozone layer, which helps protect the Earth from harmful ultraviolet radiation. However, it is not related to the crust or water bodies, so it is not the correct answer either.
In summary, the correct answer is the hydrosphere, which refers to the part of the Earth's crust covered by water bodies.

The instrument used to measure relative humidity is called

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The instrument used to measure relative humidity is called a hygrometer.
A hygrometer is a device that helps us determine the amount of moisture or water vapor present in the air. It measures the relative humidity, which is the percentage of moisture in the air compared to the maximum amount of moisture the air can hold at a given temperature.
There are different types of hygrometers, but one common type is the "dry and wet bulb" hygrometer. It consists of two thermometers: one thermometer with a dry bulb and another with a wet bulb.
To measure relative humidity, the wet bulb thermometer is wrapped with a moistened cloth. As the moisture on the cloth evaporates, it causes the wet bulb temperature to decrease. The dry bulb thermometer remains unaffected.
By comparing the temperatures of the dry and wet bulbs, we can calculate the relative humidity using a formula. The difference between the two temperatures helps us understand how much moisture is in the air.
So, in summary, a hygrometer is used to measure relative humidity by comparing the temperatures of a dry bulb and a wet bulb thermometer. It helps us understand how much water vapor is present in the air.

Quartz, fieldspar and mica are three principal mineral that can easily be seen in

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Quartz, feldspar, and mica are three principal minerals that can easily be seen in granite. Granite is a type of igneous rock, which means it is formed from the cooling and solidification of molten magma or lava. It is composed mainly of three minerals: quartz, feldspar, and mica. - **Quartz:** Quartz is a hard and durable mineral that is commonly found in granite. It appears as small or large grains and has a glassy or translucent appearance. It comes in different colors, including clear, white, pink, and gray. - **Feldspar:** Feldspar is the most abundant mineral in granite. It is a group of minerals that have a specific crystal structure. Feldspar can be recognized by its white, pink, or gray color. It often appears as large, elongated grains in granite. - **Mica:** Mica is another mineral commonly found in granite. It has a distinct layered structure and can be easily split into thin, flexible sheets. Mica is often shiny and comes in various colors such as brown, black, or green. When you look at granite, you may see specks or grains of quartz, larger grains of feldspar, and thin layers or flakes of mica. These minerals give granite its characteristic appearance and make it a popular choice for countertops, flooring, and construction materials. It's worth noting that while quartz, feldspar, and mica are the three principal minerals in granite, other minerals may also be present in smaller amounts. However, it is the abundance of these three minerals that gives granite its distinctive texture and appearance.

Which of the following is not true of the North Atlantic sea route?

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The North Atlantic sea route is the busiest sea route in the world. It links North America with Europe and Nigeria with Western Europe. Goods carried on this route do not include graius.

The table above shows the temperature and rainfall distribution of station Z. Study and use it to answer the question.The wettest month of the year is

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The wettest month of the year is determined by the month with the highest rainfall. From the table, the highest rainfall is 307mm, which occurs in August. Therefore, the wettest month of the year is August.

The world's greatest gold producer is

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After a temporary set back in 2021 due to a sharp decline in output, Ghana has reclaimed its position as the top Gold producer

A major function performed by rural settlement is

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**A major function performed by rural settlements is agriculture.** Rural settlements are areas where people live in small towns or villages, often located outside of cities. These settlements are mainly involved in agricultural activities, which means they are focused on farming and cultivating crops. Agriculture is an essential function of rural settlements because it provides food and other resources for the people living there. Farmers grow various crops such as wheat, rice, corn, and vegetables, which are then consumed by the community or sold to nearby towns and cities. In addition to crops, rural settlements may also have livestock like cows, sheep, or chickens, which provide meat, eggs, and dairy products. Agriculture is not only important for providing food, but it also contributes to the local economy. When farmers sell their products, it generates income for the community, allowing them to purchase other necessities and services. Furthermore, agriculture helps to sustain the environment in rural areas. Farmers often practice sustainable farming techniques, such as crop rotation and the use of organic fertilizers, to maintain soil fertility and prevent the depletion of natural resources. Overall, agriculture is a vital function of rural settlements as it supports the livelihoods of the residents, provides food and resources, contributes to the local economy, and helps sustain the environment.

Which of the following distinguishes rotation from revolution?

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The statement that distinguishes rotation from revolution is that "The earth rotates on its axis while it revolves around the sun in an elliptical orbit." Rotation refers to the spinning of an object around its own axis. In the case of the Earth, it rotates on an imaginary line called its axis. This rotation is responsible for various phenomena like the change between day and night. As the Earth rotates, different parts of it are exposed to the Sun's light, creating the cycle of day and night. Revolution, on the other hand, refers to the movement of an object around another object in space. In the case of the Earth, it revolves around the Sun in an elliptical orbit. This revolution takes approximately 365.25 days to complete, which gives us a year. So, to summarize, rotation refers to the spinning of an object on its axis, causing phenomena like day and night. Revolution refers to the movement of an object around another object in space, giving us the concept of a year.

Great Britain and Germany are trading partners of west African countries from

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Great Britain and Germany are trading partners of West African countries from Western Europe. Western Europe refers to the region that is located in the western part of the European continent. It includes countries such as the United Kingdom (which includes Great Britain) and Germany. Trading partners are countries that engage in the exchange of goods and services with each other. In this case, West African countries have established trading relationships with Great Britain and Germany. This means that West African countries import goods and services from Great Britain and Germany, and they also export their own goods and services to these countries. The trading partnership between West African countries and Great Britain and Germany is mutually beneficial. West African countries can access a wider range of products from Great Britain and Germany, providing opportunities for economic growth and development. On the other hand, Great Britain and Germany can access valuable resources and markets in West Africa. Overall, the trading relationship between Great Britain, Germany, and West African countries helps to facilitate economic cooperation, promote regional development, and enhance international trade between these regions.

Africa has the largest potential reserve of hydro-electric power in the world because

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It is of no doubt that Africa has the highest potential reserves of hydro-electric power because it is surrounded by large oceans.

Which of the following is a feature of heavy industries?

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A feature of heavy industries is that they are capital-intensive. This means that they require a significant amount of investment in machinery, equipment, and infrastructure to operate efficiently. Unlike light industries, which typically involve smaller-scale operations, heavy industries involve large factories or plants that are designed to produce goods on a larger scale. The term "heavy" in heavy industries refers to the nature of the products being manufactured, such as machinery, steel, chemicals, and automobiles. These products often require heavy machinery and specialized equipment to produce. Due to their large-scale operations and the need for substantial capital investment, heavy industries usually have a longer payback period for their investments. Some examples of heavy industries include manufacturing plants for automobiles, oil refineries, steel mills, and chemical production facilities. These industries usually have a higher production capacity and require a significant amount of resources and manpower to operate. In summary, heavy industries are characterized by their capital-intensive nature, large-scale operations, and production of goods that require heavy machinery. These industries play a crucial role in the economy by producing essential products and contributing to employment opportunities.

Exports from Mali are most likely to pass through the sea port at

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Exports from Mali are most likely to pass through the sea port at Abidjan. Abidjan is the largest and busiest port in West Africa, located in Cote d'Ivoire. It is strategically positioned along the Gulf of Guinea, making it an ideal gateway for trade in the region. Mali is a landlocked country, which means it does not have direct access to the sea. Therefore, to transport their goods internationally, Mali relies heavily on neighboring countries' ports. Among the given options, Abidjan is the closest and most accessible port for Mali. Abidjan offers excellent shipping facilities, infrastructure, and connections to major shipping lines. It has a well-developed road network that connects it to Mali and other landlocked Sahelian countries, making it a convenient and efficient route for transporting goods. In summary, due to its proximity, connectivity, and efficiency, the sea port at Abidjan is the most likely entry point for Mali's exports.

Which of the following is a wind deposited land form?

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A wind-deposited landform refers to a geological feature that is created or shaped by the action of wind carrying and depositing sediments. In this context, out of the four options given, the one that is a wind-deposited landform is **loess**. Loess is a specific type of sediment that is composed of fine particles of silt and clay that have been blown by wind over long distances and eventually deposited. It is typically pale yellow or light brown in color and has a very fine texture. Loess deposits often form in regions with strong and consistent winds, such as dry deserts or the margins of glacial systems. These sediments accumulate over time, often in thick layers, creating distinct landforms. One characteristic feature associated with loess is its ability to be easily eroded by wind and water. This erosion gives rise to unique landforms, such as **yardangs** and **deflation hollows**, which are also mentioned in the given options. A yardang is a ridge of rock that has been carved and streamlined by wind erosion. The wind scours away the loose sediment, leaving behind elongated ridges that run parallel to the prevailing wind direction. Yardangs can vary in size from a few meters to several kilometers long. A deflation hollow, on the other hand, is a depression in the landscape that forms when loose sediments are eroded away by wind, leaving behind a lowered area. These hollows can occur individually or in groups, and their size and shape depend on the intensity and duration of wind erosion. While both yardangs and deflation hollows are features associated with wind erosion, they are not technically wind-deposited landforms since they are created by the removal of sediment rather than the deposition of sediment. In summary, out of the options given, the wind-deposited landform is **loess**. It is a type of fine sediment made of silt and clay particles that are transported and deposited by the wind. Yardangs and deflation hollows, although associated with wind erosion, are not specifically wind-deposited landforms.

Which of the following sources of power supply is renewable?

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Solar energy is the energy gotten from the sun. The sun is the largest (star and its also the ultimate source of light and energy to all the planets. Coal, gas and Nuclear energy are hot renewable(i.e they cannot be reused when exhausted)

A block mountain is formed as a result of

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A block mountain is formed as a result of faulting, specifically a type of fault called a normal fault.
When the Earth's crust experiences stress, it can cause rocks to break along fault lines. In the case of a normal fault, the rocks on one side of the fault move downward relative to the rocks on the other side. This downward movement creates a step-like feature on the Earth's surface, with one side lower than the other. This step-like feature is what we call a block mountain.
As time goes on, the forces of erosion, such as wind, water, and glaciers, start to wear away at the block mountain. However, the harder and more resistant rocks that make up the mountain are less easily eroded compared to the softer surrounding rocks. This causes the block mountain to stand out even more as a prominent and elevated feature in the landscape.
So, to summarize, a block mountain is formed when the Earth's crust experiences faulting, specifically a normal fault. The downward movement of rocks on one side of the fault creates a step-like feature on the Earth's surface, which we call a block mountain. Erosion then works to shape and define the mountain's features over time.

The major crop grown in the El juf Basin of Mali is

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The major crop grown in the El Juf Basin of Mali is cotton. Cotton is a plant that is mainly grown for its fiber, which is used to make fabrics and textiles. The El Juf Basin in Mali has favorable conditions for growing cotton, such as a warm climate and fertile soil.
Cotton plants require a long growing season with plenty of sunshine and a moderate amount of rainfall. The El Juf Basin receives sufficient rainfall and has an irrigation system in place to ensure that the cotton plants are well-watered.
Cotton cultivation in the El Juf Basin provides a significant source of income for the local farmers and contributes to the economy of Mali. Cotton farms in this region employ many people and support the livelihoods of the local communities.
In summary, the major crop grown in the El Juf Basin of Mali is cotton due to its suitability to the region's climate and soil conditions.

The dam which is not used in Gezira is the

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Jebal Azula is a dam which is not used in Gezira scheme

Soil erosion by action of rain can be caused y all the following except

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Aridity is a long term lack of rainfall or moisture. Soil erosion cannot take place in an srid area.

The land-use activities which can be considered responsible for soil erosion in the tropics are

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Industrial activities such as production, construction etc, monoculture and lumbering are responsible for erosion in the tropics

The main reason for which most manufacturing industries in West Africa are concentrated in cities and towns along the coast is that they have

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This is due to the fact that there is a large number of warehouses in these regions. These warehouses are storage facilities where the goods are kept prior or after shipping.

The sun is vertically overhead at the tropic of Caprison in

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The sun is vertically overhead at the tropic of Capricorn on December 22nd. To understand why, we need to know a few things about the Earth's tilt and its movement around the sun. The Earth is tilted on its axis at an angle of about 23.5 degrees. This tilt is what gives us our seasons. During the year, the Earth moves around the sun in an elliptical path. On two specific days, called the solstices, the sun reaches its highest or lowest point in the sky. These are the days when the tilt of the Earth is most noticeable. On December 22nd, the Northern Hemisphere is tilted away from the sun. This means that the sun appears lower in the sky and its rays are more spread out. Meanwhile, the Southern Hemisphere is tilted towards the sun. This tilt causes the sun to appear higher in the sky and its rays to be more concentrated. The tropic of Capricorn is located at about 23.5 degrees south of the equator. On December 22nd, the sun is directly overhead at this latitude because the tilt of the Earth causes the sun's rays to be focused at that point. In summary, on December 22nd, the sun is directly overhead at the tropic of Capricorn because of the Earth's tilt and its position in its orbit around the sun.

Urban type of settlement is best described as

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An urban settlement is where displaced population settle within agglomeration such as a town or city. People are mainly involved in secondary and tertiary activities like manufacturing and construction. Additionally, dispersed settlement is one of the main types of settlement pattern used to classify rural settlement.

Barchan dunes move

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A barchan is a cresentic or moon-shaped structure. A barchan is formed when an obstacle like rocks impedes or prevents the movement of wind

A slope is said to be even when the contours are

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A slope is said to be even when the contours are **equally placed**. This means that the contours are evenly spaced apart from each other. When the contours are evenly spaced, it indicates that the slope of the land is relatively consistent throughout the area. Imagine looking at a map or a cross-section of a hill or mountain. Contours are the lines on the map that connect points of the same elevation. They give us a visual representation of how steep or gentle the slope is at any given point. When the contours are evenly spaced, it means that the difference in elevation between each contour line is consistent. This indicates that the slope is gradual and not too steep. For example, if we have contour lines that are evenly spaced apart by 10 meters, it means that the slope of the land is changing by approximately 10 meters in height with each contour line. On the other hand, if the contours are irregularly spaced, it means that the slope is varying more dramatically. This can indicate areas of steep cliffs or sudden changes in elevation. In summary, an even slope is characterized by **equally placed** contours, indicating a gradual and consistent change in elevation.

River regime is best described as the

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The river regime generally describes the character of the typical fluctuations of a flow of a river, but can also refer to the mathematical relationship between the river discharge and its width, depth and slope

When weathering occurs on hill slopes, rock debris usually pile up at the bottom of the hill slope to form

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When weathering occurs on hill slopes, the rock debris usually pile up at the bottom of the hill slope to form **scrree**. Scree is a deposition of loose rock fragments that have accumulated at the base of a steep slope or cliff. It is formed as a result of the continuous process of weathering, erosion, and gravity. Weathering is the breakdown of rocks by natural processes, such as wind, water, and temperature changes. This causes rocks to become smaller and more fragmented over time. Erosion is the process of transporting the fragmented rock material down the slope. Gravity plays a significant role in moving the loose rock fragments towards the bottom of the hill slope. As the weathered rock fragments accumulate at the base of the slope, they form a pile of loose debris called scree. Scree can range in size from small pebbles to larger rocks. It is usually found on steep slopes or cliffs where the force of gravity pulls the loose rock down and accumulates it at the bottom. In conclusion, when weathering occurs on hill slopes, the rock debris piles up at the bottom to form scree.

Under the Greek system of climate classification, the world is divided into

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The world is divided into torrid, temperate, and frigid zones under the Greek system of climate classification. 1. Torrid Zone: This zone is the closest to the equator and is known for its hot and humid climate. It experiences high temperatures throughout the year with minimal variations. The torrid zone is characterized by tropical rainforests, savannas, and deserts. 2. Temperate Zone: The temperate zone is situated between the torrid and frigid zones. It has a moderate climate with distinct seasons. The temperatures in this zone vary significantly throughout the year, with warm summers and cool winters. This zone is known for its diverse vegetation, including deciduous forests and grasslands. 3. Frigid Zone: The frigid zone is located in the extreme north and south of the Earth, near the poles. It is known for its extremely cold temperatures, especially during the winter season. The frigid zone is covered with ice, and only a few plants and animals can survive in this harsh environment. In summary, the Greek system of climate classification divides the world into torrid, temperate, and frigid zones, depending on factors such as temperature, humidity, and vegetation.

Which of the following is not a problem militating against political and economic integration in West Africa?

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Political and economic integration can be hindered by powerful colonial ties, religion and political instability but currency should not be an obstacle because there should be an established exchange rate.

A line joining all points of equal salinity is an

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A line joining all points of equal salinity is called an isohaline. In simpler terms, an isohaline is a line that connects points in a body of water that have the same level of salinity or saltiness. It is similar to a contour line you might see on a map that connects points of equal elevation. Salinity refers to the amount of salt dissolved in water. Different areas of the ocean, sea, or even a lake can have varying levels of salinity. An isohaline helps us visualize these varying levels by connecting the points with the same salinity. By studying and mapping isohalines, scientists can gain valuable insights into the distribution and movement of saltwater in different bodies of water. This information is important for understanding ocean currents, marine life habitats, and even for managing freshwater resources. To summarize, an isohaline is a line that connects points with the same salinity in a body of water. It helps us understand the distribution and movement of saltwater and is valuable in various scientific studies and resource management.

The type of energy that is most environmentally friendly is

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The most environmentally friendly type of energy is solar energy. Solar energy refers to the energy that is derived from the sun's rays. Here's why solar energy is considered to be the most environmentally friendly option:
1. Renewable: Solar energy is a renewable source of energy. The sun is constantly shining, making solar energy an abundant and inexhaustible resource. As long as the sun exists, we will continue to have solar energy available to us.
2. Zero Emissions: Solar energy produces zero emissions during its operation. Unlike other energy sources like fossil fuels (such as coal or natural gas) that release harmful pollutants and greenhouse gases when burned, solar energy is clean and does not contribute to air pollution or climate change.
3. No Noise Pollution: Solar energy systems operate silently, unlike some other energy sources like thermal or nuclear power plants that can generate noise pollution. This makes solar energy a favorable option, particularly for residential areas.
4. Low Maintenance: Solar panels require minimal maintenance once installed. Regular cleaning to keep them free from dust and debris is usually sufficient. This reduces the need for ongoing maintenance and associated environmental impacts.
5. Modularity and Scalability: Solar energy systems can be easily scaled up or down depending on the energy requirements. They can range from small individual rooftop installations to vast solar farms. This flexibility makes solar energy a versatile option for different settings and energy demands.
6. Local Generation: Solar energy can be generated locally, reducing the need for extensive transmission networks and energy loss during distribution. Local generation can enhance energy independence, reduce reliance on centralized power systems, and result in more resilient and sustainable energy supply.
In conclusion, solar energy is the most environmentally friendly option due to its renewable nature, zero emissions, lack of noise pollution, low maintenance requirements, modularity and scalability, as well as its ability to generate energy locally. It is a sustainable and clean source of energy that has the potential to reduce our carbon footprint and mitigate the impacts of climate change.

Which of the following has the highest salinity?

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The Dead Sea has the highest salinity among the given options. Salinity refers to the amount of salt dissolved in water. In other words, it is a measure of the saltiness of the water. The Dead Sea is located between Israel and Jordan, and it is actually not a sea but a saltwater lake. What makes the Dead Sea unique is its extremely high salt concentration. The water in the Dead Sea is about 10 times saltier than sea water. There are several reasons why the Dead Sea has such high salinity. Firstly, it is located in a region with a very hot and dry climate, which means that water evaporates quickly. As the water evaporates, the salt gets left behind, increasing the overall concentration of salt in the lake. Secondly, the Dead Sea is landlocked, which means it does not have an outlet or a flow of water that can dilute the salt concentration. Unlike the Mediterranean Sea or the Red Sea, which are connected to the global ocean system, the Dead Sea is a closed basin. As a result, the salt that enters the lake stays there and continues to accumulate over time. Lastly, the Dead Sea region is known for its rich mineral deposits, including salts. These minerals get washed into the lake through rivers and streams, further contributing to the high salinity of the water. In summary, the Dead Sea has the highest salinity among the given options due to its evaporation, lack of connection to the global ocean system, and the presence of mineral deposits. This high salinity creates a unique environment where floating becomes effortless and leads to the formation of salt crystals along the shores.

An example of a coastline of emergence is

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A coastline of emergence refers to a type of coastline where the land is rising relative to the sea level. This rise in land can be caused by geological processes such as tectonic movements or isostatic rebound. One example of a coastline of emergence is a **raised beach**. A raised beach is a coastal landform that was once at sea level but has been lifted up above the current sea level. This lifting can occur due to processes like tectonic activity or changes in the Earth's crust. When the land rises, the shoreline shifts upwards, leaving behind a flat or gently sloping platform. This platform, known as a raised beach, is typically located above the reach of waves and tides. It can vary in width and elevation, extending for several kilometers inland. A raised beach often has distinctive features such as wave-cut notches, terraces, and marine deposits like shells or sediments. These features serve as evidence of its former connection to the sea. It is important to note that a raised beach is just one type of coastline of emergence. Other examples include dalmation coasts, ria coasts, and estuarine coasts. However, among the given options, a raised beach best represents a coastline of emergence.

Which of the following criteria is used to classify settlements into rural or urban?

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The criteria used to classify settlements into rural or urban are: 1. **Function:** This refers to the activities and services that are available within the settlement. In urban settlements, there tends to be a larger variety of economic, educational, and recreational services. These can include industries, offices, schools, hospitals, shopping centers, and entertainment facilities. In contrast, rural settlements mostly have agricultural activities as their main function, with limited services and amenities. 2. **Site:** Site refers to the physical characteristics of the settlement, including its natural features and topography. Urban settlements are commonly found in locations with favorable geographic conditions such as access to transportation routes, water sources, and fertile land. Rural settlements, on the other hand, are often situated in areas with more agricultural potential, like fertile soil and access to water for irrigation. 3. **Location:** Location refers to the position of the settlement relative to other settlements and urban centers. Urban settlements are usually located in more densely populated areas, with close proximity to other urban areas and transportation networks. They tend to be the economic and administrative centers of a region. Rural settlements, on the other hand, are typically found in more sparsely populated areas, characterized by agricultural or natural landscapes, with greater distances between each settlement. In summary, the three criteria used to classify settlements into rural or urban are function, site, and location. Function relates to the activities and services available, site refers to the physical characteristics of the settlement, and location considers the position in relation to other settlements and urban centers.

Countries in the northern hemisphere experience shorter days and longer nights when the sun is overhead on the

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On June 21, the sun is overhead at the tropic of cancer, resulting in June or summer scistics

The table above shows the temperature and rainfall distribution of station Z. Study and use it to answer the question.

What is the annual range of temperature for station Z

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The annual range of temperature is calculated by subtracting the lowest temperature of the year from the highest temperature of the year. From the table, the highest temperature is 32oC (in April) and the lowest is 22oC (in January). Therefore, the annual range of temperature is 32 - 22 = 10oC.

The coastal regions of Sierra Leone record an annual rainfall of over

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Annual rainfall in Sierra Leone coastal regions is over 4,800m, which makes it the wettest country in West Africa.

Plateaux formed together with fold mountains are best described as

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Plateaux formed together with fold mountains are best described as "intermountain plateaus." Intermountain plateaus are large, elevated flat lands that are found between different mountain ranges. These plateaus are typically formed when tectonic forces cause the Earth's crust to buckle and fold, creating fold mountains. As these mountains rise, the surrounding areas are also uplifted, resulting in the formation of plateaus. Unlike regular plateaus, intermountain plateaus are not as deeply dissected by erosion. This means that they generally have a more even and flat topography compared to other types of plateaus. However, they still exhibit some degree of ruggedness due to the uplift and folding processes that occurred during their formation. Overall, intermountain plateaus are important features of the Earth's landscape. They provide a transitional zone between mountainous regions and the lower-lying areas beyond, and they often serve as essential water catchment areas, playing a crucial role in supplying water to rivers and streams. Their relatively flat terrain also makes them suitable for human activities such as agriculture and transportation.

In which erosional plain is an inselberg commonly found

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Inselberg is formed from the existence of extensive old plateau

Nigeria major export commodity is

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Nigeria's biggest export is crude oil, a commodity that represents over three-quaters(78.7%) of its total exported goods by value.