JAMB UTME - Geography - 2019

The Stevenson's screen is raised about one meter above the ground in order to avoid

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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.

In surveying, the prismatic compass is used to

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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 sex ratio of any population may be affected by

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The best technique to prevent soil erosion in a humid, gently sloping area is to adopt

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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.

An example of a rock formed by wood subjected to pressure and heat is

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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.

The relative dryness of the Horn Africa is due to

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If the standard time of a country is GMT + 1hr, which longitude's local time is adopted by the country?

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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.

The world leading producer of cocoa is

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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.

The highest category of rural settlement is the

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The highest category of rural settlement is a village. A village is a small, rural community that typically consists of a group of houses and other buildings, surrounded by farmland. People in a village often have close-knit relationships and rely on each other for support. Villages often have a central area where people gather for social events and activities, such as a village green or town square. Villages may also have basic amenities such as a school, a post office, and a general store. In comparison, a homestead refers to a house and the surrounding land that is used for farming or other agricultural purposes. A hut is a small, simple dwelling, often made of natural materials like mud or thatch. A hamlet is a small settlement, similar to a village, but with a smaller population and fewer amenities.

An example of a non-renewable resource is

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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.

An igneous rock with distinct grains of mica, fieldspar and quartz is

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The igneous rock with distinct grains of mica, feldspar, and quartz is granite. Granite is a type of igneous rock that is formed by the cooling and solidification of magma or lava. It is composed of several minerals, including quartz, feldspar, and mica. These minerals give granite its characteristic speckled appearance and make it a popular choice for building and decorative purposes. Mica is a shiny mineral that appears in thin, flat sheets and gives granite its distinctive glittery look. Feldspar is a group of minerals that are very common in igneous rocks and make up the majority of granite's composition. Quartz is a hard, mineral that is often found in igneous rocks and contributes to granite's durability. In summary, if you find an igneous rock with distinct grains of mica, feldspar, and quartz, it is most likely granite.

The speed and capacity of a train are influenced by the

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An example of argillaceous rock is

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Automobile Industries that are essentially assembly plants are found in

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Which of the following regions has the least population density?

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The region with the least population density is the Eurasian Tundra. The tundra is a cold, barren landscape located in the northern hemisphere, spanning across parts of Alaska, Canada, Russia, and Scandinavia. This region is characterized by extremely harsh weather conditions, including long, cold winters and brief, cool summers. The soil is also poor in nutrients and unable to support much plant life, making it difficult for people and animals to survive. As a result, the population density in this region is very low and only a small number of people live there.

Which of the following is most influential in the location of textile and footwear industries?

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Among the options given, the most influential factor in the location of textile and footwear industries is abundant cheap labor. Textile and footwear industries require a large labor force to produce goods at a low cost. If a country has a large supply of labor willing to work for low wages, it can attract textile and footwear industries to set up factories in its territory. This is because labor is usually the largest cost for these industries, and a country with cheap labor can offer cost advantages to manufacturers. Raw materials are also important for these industries, but they can be imported from other countries if they are not available locally. Energy supply and low interest rates may also affect the cost of production, but they are less critical factors than the availability of cheap labor. In summary, countries with a large supply of cheap labor have an advantage in attracting textile and footwear industries because they can offer low production costs to manufacturers, making their products more competitive in the global market.

The most common greenhouse gas in the atmosphere is

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The process by which organic matter is decomposed and synthesized to form part of the soil is known as

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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.

Which of the following pairs of cities have both seaport and international airport?

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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.

In river transport, the problem of irregular levels of water can be overcome by

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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.

A country well known for the production of Copper in Africa is

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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.

Sugar Plantations in Africa are most highly developed in the lowlands of

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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.

The South Pole is in darkness from

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The catalyst in the economic development of Japan is its

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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.

Examples of fold mountains in Africa are

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A good example of cuesta landscape in Nigeria is

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The Udi hills can be considered as a good example of a cuesta landscape in Nigeria. A cuesta is a type of landform that is formed from the erosion of layered rocks. It is characterized by a gentle slope on one side and a steep slope on the other side. The Udi hills have this characteristic and are composed of sandstone and shale, which have been tilted and eroded over time, forming the cuesta landscape. This area is also known for its scenic beauty and rich cultural heritage, making it an interesting place to visit.

Which of the following factors may lead to an area being densely populated?

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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.

Which is simplest method of rapid distance measurement in surveying?

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A government policy which is likely to encourage massive importation of goods into a country is the

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The likely policy to encourage massive importation of goods into a country is the relaxation of currency control. Currency control refers to the regulations and restrictions placed on the use of a country's currency by its government. Relaxation of currency control means that the government is loosening its restrictions on the use of the country's currency, making it easier for people and businesses to buy goods from other countries. When currency controls are relaxed, it becomes easier for people and businesses to exchange their local currency for foreign currency to pay for imports. This can lead to an increase in the importation of goods into the country.

The Nigerian town which owed much of their growth in the 20th century to the development of the railway include

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The development of a climax vegetation in the Savannah belt of Nigeria is disturbed mainly by

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The development of climax vegetation in the savannah belt of Nigeria is mainly disturbed by bush burning. This is because frequent burning of the grassland destroys the vegetation cover, which can prevent the establishment of trees and other woody plants that are characteristic of climax vegetation. Bush burning also leads to a reduction in soil nutrients, making it difficult for plants to grow. Although activities such as lumbering, mining, and animal grazing can also contribute to the disturbance of climax vegetation, they are not the main cause. Lumbering and mining, for example, involve the removal of trees and vegetation, but these activities are typically limited in scale and do not occur as frequently as bush burning. Animal grazing can also have an impact on vegetation, but it is usually managed in a way that allows for the recovery of the grassland. Therefore, it is the frequent and uncontrolled practice of bush burning that is the primary cause of disturbance to the development of climax vegetation in the savannah belt of Nigeria.

The obudu plateau of the cross River Basin is economically noted for

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The Obudu Plateau in the Cross River Basin is economically noted for several activities, including cattle ranching, tourism, tea and coffee plantations, and exploitation of forest resources. However, one of the most notable economic activities in the Obudu Plateau is cattle ranching. The plateau's cool and suitable climate makes it an ideal location for cattle farming and the rearing of other livestock. Tourism is also another important economic activity in the Obudu Plateau. The plateau is known for its beautiful landscapes, waterfalls, and other natural attractions that draw tourists from all over the world. In addition to these, the Obudu Plateau also has tea and coffee plantations, which are grown and processed for local and international consumption. The exploitation of forest resources is also an important economic activity, as the plateau is home to a rich diversity of flora and fauna. Finally, the generation of hydroelectricity is also a notable economic activity in the Obudu Plateau, as the high altitude and abundant water resources provide ample opportunities for the generation of hydroelectric power.

The ferralitic soils in West Africa are mostly found in the

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The most suitable statistical diagram to show spatial distribution of production is the

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The most suitable statistical diagram to show spatial distribution of production is a dot map. A dot map is a type of map that uses dots to represent the quantity or density of a particular feature across a geographic area. In the case of production data, each dot can represent a certain amount of production, and the density of the dots can show areas with high or low production levels. This allows for a clear visual representation of where production is concentrated and where it is less prominent. Pie charts, divided circles, and line graphs are not suitable for showing spatial distribution of production. A pie chart is used to show proportions of a whole, while a divided circle is similar to a pie chart but is divided into more than one category. These charts are best suited for displaying data where the whole is made up of distinct categories, rather than for geographic data. A line graph, on the other hand, is used to show trends over time, and is not well-suited for displaying spatial data.

Lakes kivu and Malawi are related in that they

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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.

An example of a landform produced by glaciation is

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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.

The most densely populated city which is also the capital of a country in Africa is

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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.

The merging together of a number of urban settlements will produce a

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The merging together of a number of urban settlements will produce a conurbation. A conurbation is a region that consists of a cluster of adjacent metropolitan areas and their surrounding suburban and rural areas. It arises when multiple urban settlements grow and expand to the point where they merge and form a single continuous urban area. The resulting conurbation typically has a high population density and can span across several cities or even entire regions. Examples of well-known conurbations include the Greater London area in the UK, the Rhine-Ruhr region in Germany, and the BosWash corridor in the United States.

A common feature of forcados, Bonny and Eket in the Niger delta is that they are

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A common feature of Forcados, Bonny, and Eket in the Niger Delta is that they are all terminals for oil companies. These three locations are major hubs for the extraction, transportation, and export of crude oil in the region. Forcados, Bonny, and Eket are all situated along the coast of the Niger Delta, which is home to vast reserves of crude oil. Oil companies have established facilities at these locations to extract crude oil from the ground, transport it via pipelines or tankers, and export it to other parts of the world. The oil industry is a crucial part of the economy of the Niger Delta, and Forcados, Bonny, and Eket are all key players in this industry. While fishing is an important activity in the Niger Delta, these locations are not primarily known for their fishing ports. Similarly, while natural gas exports are an important part of the region's economy, Forcados, Bonny, and Eket are not the only locations where this takes place. Finally, while export processing zones do exist in the Niger Delta, this is not a defining characteristic of these three locations.