JAMB UTME - Geography - 2018

How were the major mountain belts of the world produced?

Answer Details

The major mountain belts of the world were produced by a geological process known as "folding". Over millions of years, immense pressure from tectonic plates caused rocks in the Earth's crust to buckle and fold, resulting in the formation of mountain ranges. This process is often associated with the collision of two tectonic plates, which can create enormous forces that push and compress rocks together, causing them to fold and uplift into mountains. Unlike weathering or wind erosion, which wear down and erode mountains over time, folding is a constructive process that builds mountains up. While rivers and other natural forces can contribute to the formation of mountains, they are generally not the primary cause of major mountain belts. Instead, the formation of mountain ranges is primarily driven by the slow but powerful movements of the Earth's tectonic plates over long periods of time.

The feature is one or the land forms associated with_________

Answer Details

The feature associated with river erosion is valleys. River erosion occurs when a river's fast-moving water cuts into its riverbed and banks, causing the river to widen and deepen over time. This process creates steep-sided valleys that are wider at the bottom than at the top. The riverbed and banks are constantly being reshaped by the erosive forces of the water, which carry away sediment and rocks. Over time, the river's course may change as it continues to erode and deposit material, carving new valleys and leaving behind a signature of its past path in the form of terraces.

Study the map and answer the question. The land-form feature at the centre of the map can best be described as

Answer Details

When the moon comes in between the earth and the sun________

Answer Details

A solar eclipse occurs when the moon comes between the earth and the sun. During a solar eclipse, the moon blocks the sun's light and casts a shadow on the earth. This causes a temporary darkness in the middle of the day and is a spectacular sight to see. Solar eclipses can only happen during a full moon and are relatively rare events. They occur because the moon and the sun are exactly in line with the earth and the moon's shadow falls on the earth.

The major environmental problem associated with Area marked Y is____________

Answer Details

Environmental issues are harmful effects of human activity on the biophysical environment. South Eastern States of Nigeria are heavily affected by gully erosion due to their underlying geology and the serenity of their accompanied surface process.

The oldest system of agriculture in Nigeria which now survives only in very remote areas is

Answer Details

The oldest system of agriculture in Nigeria which now survives only in very remote areas is shifting cultivation, also known as slash-and-burn agriculture. Shifting cultivation involves cutting down a patch of forest or woodland, burning the vegetation, and planting crops in the ash-enriched soil. Farmers would use the land for a few years until the soil fertility decreases, then abandon it and move to a new area, leaving the old area to regenerate into forest or woodland. This practice was sustainable when population densities were low and farmers had access to vast areas of land. However, with the growth of population and increased pressure on land, shifting cultivation has become less sustainable, leading to soil degradation, deforestation, and loss of biodiversity. Today, shifting cultivation survives only in very remote areas, where population densities are still low and access to land is not restricted.

Which of the following is not a proof to show that the earth is spherical in shape?

Answer Details

The option that is not a proof to show that the Earth is spherical in shape is "twilight and dawn." While sunrise, sunset, ships visibility, and lunar eclipse are all evidence that supports the idea that the Earth is a sphere, twilight and dawn are not necessarily proof of this shape. Twilight and dawn occur when the Sun is just below the horizon and its light is scattered by the Earth's atmosphere, creating a soft, diffuse light. While this phenomenon is consistent with the idea that the Earth is a sphere, it is not unique to this shape and could also occur on other types of celestial bodies. In contrast, sunrise and sunset occur because the Earth's spherical shape causes the Sun's light to be blocked from certain parts of the planet as it rotates on its axis. Ships visibility and lunar eclipses are also consistent with the idea that the Earth is a sphere because they demonstrate the way that a sphere can obstruct light and shadow.

Study the map and answer the question. Intervisibility is possible between the points marked X and Y because the intervening slope is

Answer Details

All the following are environmental hazards except___________

Answer Details

The environmental hazard among the given options that is not included is afforestation. Afforestation refers to the process of planting trees in an area where there was no forest, or the forest has been destroyed, and it is typically seen as a positive action for the environment. On the other hand, the other three options are environmental hazards that can have negative impacts on people and the environment. Flooding, for example, can lead to property damage, displacement of people, and loss of life. Vulcanicity, which refers to the movement of magma and volcanic activity, can result in the release of toxic gases, destruction of property, and loss of life. Deforestation, which is the clearing of forests for various human activities, can cause soil erosion, loss of biodiversity, and contribute to climate change.

The innermost section of the Earth is the__________

Answer Details

The innermost section of the Earth is the core. The Earth's core is the central part of our planet, located beneath the mantle. It is composed primarily of iron and nickel, and is divided into two distinct layers: the outer core and the inner core. The outer core is a liquid layer that surrounds the solid inner core. The inner core is a solid, dense ball of metal that is about the size of the Moon. The core plays a crucial role in the Earth's magnetic field, which helps protect our planet from harmful solar radiation. The core also generates the heat that drives the movement of the Earth's tectonic plates, which causes earthquakes and volcanic eruptions. Understanding the properties and behavior of the Earth's core is an important area of research in the field of geophysics.

A broad-based population pyramid is composed mainly

Answer Details

A broad-based population pyramid is composed mainly of young dependants and active inhabitants. This means that there are more people in the younger age brackets (typically 0-14 years old) and a significant proportion of the population is in the working age bracket (typically 15-64 years old). The number of elderly people (typically 65 years and above) in this type of pyramid is relatively small. Broad-based population pyramids are typically associated with countries that have high birth rates and lower life expectancies. In these countries, the younger population tends to be larger and the older population tends to be smaller due to factors such as high infant mortality rates and shorter life spans. The larger working-age population in these countries can be a potential source of economic growth if they are able to find employment and contribute to the country's development.

A type of land-form that is associated with large scale orogeny is a

Answer Details

A fold mountain is a type of land-form that is associated with large scale orogeny. In simple terms, orogeny is the process of mountain building, which occurs when two tectonic plates collide and push up the land between them. This process causes the rock layers to bend, fold and become uplifted, creating a fold mountain. Examples of fold mountains include the Rocky Mountains in North America and the Himalayas in Asia.

The most extensive vegetation type in the area marked Z is the

Answer Details

Study the map and answer the question. The Area covered by the map is approximately

Answer Details

The plains formed when the slopes of mountains are worn back in arid and semi-arid regions my mechanical weathering is called_______

Answer Details

The plains formed when the slopes of mountains are worn back in arid and semi-arid regions by mechanical weathering is called "Pediplains". Pediplains are a type of plain that form as a result of the gradual erosion and weathering of mountains and hills. They typically occur in arid and semi-arid regions where there is little vegetation to protect the land from erosion. Over time, as the wind, rain, and other natural forces wear away at the mountain slopes, sediment is carried downhill and deposited on the surrounding plain. This sediment can be made up of rocks, sand, and soil, and can create a relatively flat and gently sloping plain that extends out from the base of the mountain. Unlike other types of plains, such as alluvial plains or outwash plains, which are formed by water deposition, pediplains are formed by the mechanical weathering and erosion of rock and soil. They are typically found in regions where there is little precipitation and where the climate is dry and hot, which can help to speed up the weathering process.

A mercury barometer is used for measuring_________

Answer Details

A mercury barometer is used for measuring atmospheric pressure. Atmospheric pressure is the force exerted by the weight of air molecules in the atmosphere. It is an important parameter that affects weather patterns and other natural phenomena. A mercury barometer consists of a long glass tube filled with mercury and inverted into a dish of mercury. The mercury in the tube rises or falls depending on the atmospheric pressure. When the atmospheric pressure is high, the weight of the air above the barometer pushes down on the surface of the mercury in the dish, forcing the mercury in the tube to rise. Conversely, when the atmospheric pressure is low, the weight of the air above the barometer is less, and the mercury in the tube falls. By measuring the height of the mercury column in the tube, the atmospheric pressure can be determined. The standard unit of atmospheric pressure is the Pascal (Pa), but barometric pressure is often measured in units of millimeters of mercury (mmHg) or inches of mercury (inHg). In summary, a mercury barometer is a device used to measure atmospheric pressure by observing the height of a column of mercury in a glass tube.

An instrument used for setting out right angle in surveying a parcel of land is

Answer Details

Surveying or land surveying is the technique, profession, and science of determining the terrestrial or three-dimensional positions of points and the distances and angles between them

A river transport its load through the following processes except_________

Answer Details

The river transports its load through three main processes: solution, traction, and suspension. Plucking is not a process by which a river transports its load. Solution is the process by which the river dissolves soluble minerals such as calcium and transports them in solution. Traction is the process by which larger and heavier particles such as boulders and pebbles are rolled or dragged along the riverbed. Suspension is the process by which smaller and lighter particles such as silt and clay are carried along in the flowing water. Plucking, on the other hand, is a process by which glaciers transport their load. It occurs when the glacier freezes onto rocks and then plucks them out as the glacier moves. This process is not applicable to rivers as they do not have the capability to freeze onto rocks and pluck them out.

Use the diagram below to answer the question. The feature marked X in the diagram is a

Answer Details

The feature marked X in the diagram is a cliff. A cliff is a high and steep rock face or earth surface that drops abruptly from a higher to a lower level. It can also be defined as a steep slope or vertical surface, especially one at the edge of a body of water like the ocean or a lake. The diagram shows a rocky surface that slopes down dramatically towards the water, which is a clear indication that it is a cliff.

A form of chemical weathering is__________

Answer Details

The form of chemical weathering is carbonation. Carbonation is a type of chemical weathering that occurs when carbon dioxide from the air reacts with minerals in rocks to form new compounds. This reaction causes the minerals in the rock to dissolve and the rock to become weaker and eventually break down into smaller pieces. This process is important in the formation of soil, as it helps break down rocks and minerals into smaller particles that can be easily transported and mixed into the soil.

Organic components of the soil include all the following except_______

Answer Details

The organic components of the soil include microorganisms, humus, and animal remains. The correct answer, therefore, is "rock pedestal." Rock pedestal, also known as bedrock, is a non-organic component of the soil. It is the solid, underlying layer of rock that makes up the Earth's crust. Bedrock does not contain any organic material, and it does not contribute to the fertility of the soil. On the other hand, the organic components of soil are essential for healthy plant growth. Microorganisms break down organic matter into nutrients that plants can absorb, while humus provides a rich source of nutrients for plant growth. Animal remains, such as dead insects or animal waste, can also provide organic material for the soil. In summary, while microorganisms, humus, and animal remains are all examples of organic components of soil, rock pedestal is a non-organic component and does not contribute to the fertility of the soil.

The lack of access to food in some parts of the world emanates from

Answer Details

Use the map below to answer the question. The major environmental problems associated with the area marked Y is

Answer Details

The greatest volcanic regions of Africa are found in

Answer Details

The greatest volcanic regions of Africa are found in two main areas: Kenya and Tanzania, and Sudan and Ethiopia. In Kenya and Tanzania, the Great Rift Valley runs through the region and is home to some of the most iconic volcanic features on the continent. The valley is characterized by a series of interconnected volcanoes, hot springs, geysers, and lakes. The most famous volcanic peaks in the area are Mount Kilimanjaro, Mount Kenya, and Mount Meru. In Sudan and Ethiopia, the East African Rift Valley also runs through the region and is another hotspot for volcanic activity. The valley is home to a number of active and dormant volcanoes, including Erta Ale, Nyiragongo, and Mount Karthala. In addition, the region is known for its geothermal activity, with numerous hot springs and geysers dotting the landscape. Both of these regions are characterized by their tectonic activity, with the movement of the Earth's crust leading to the formation of rift valleys, which in turn create the conditions for volcanic activity. The result is a stunning and unique landscape that draws visitors from all over the world.

Along which latitude will be the day time be longest on Christmas day?

Answer Details

Latitude 66 and half marks the____________

Answer Details

Latitude 66 and a half (66.5) marks the Arctic Circle. The Arctic Circle is an imaginary line that circles the Earth at approximately 66.5 degrees latitude, which is located in the northern hemisphere. This line marks the southernmost point at which the sun can remain continuously above or below the horizon for a full 24 hours, depending on the time of year. Therefore, if you are at a location with latitude 66.5 degrees or higher, it means that you are within the Arctic Circle and can experience the phenomenon of the midnight sun during the summer solstice, where the sun remains above the horizon for a full 24 hours. In contrast, during the winter solstice, the sun will not rise above the horizon at all, resulting in 24 hours of darkness. Hence, the correct answer is: - Arctic Circle

Use the map below to answer the question. The most important minerals found in the area marked X are

Answer Details

Use the information given in the chart and answer the question. If the total population of the city is 500,000 what is the population of ward 4?

Answer Details

Study the table given which shows the mean climatic conditions of station Q and answer the questions.

Answer Details

Based on the given mean climatic conditions, the station has a "Cool Temperate" climate. This is because the average temperature during the warmest month (July) is 19°C, which is below the threshold for a "Warm Temperate" or "Mediterranean" climate. Additionally, the average temperature during the coldest month (January) is -11°C, which is characteristic of a "Cool Temperate" or "Cold Temperate" climate. The amount of precipitation throughout the year is moderate, with the wettest month being July with 71mm of rainfall.

Use the information given in the chart and answer the question. An alternative graphic method that can be used to depict the same information is the

Answer Details

The difference between high tide and low tide is referred to as__________

Answer Details

The difference between high tide and low tide is referred to as "tidal range". Tidal range is the vertical distance between the highest water level of a high tide and the lowest water level of a low tide. In other words, it is the difference in height between the highest and lowest water levels during a tidal cycle. Tidal range can vary depending on the location, the phase of the moon, and other factors such as weather conditions. It is an important measurement for activities such as boating, fishing, and coastal engineering, as well as for understanding and predicting the effects of sea level changes on coastlines.

If the distance between two places on a map is 2cm, while the distance on land is 4km, the scale of the map is

Answer Details

The scale of a map is the ratio of the distance on the map to the actual distance on land. It is usually written as a fraction, like 1:100,000, where the first number represents the distance on the map and the second number represents the corresponding distance on land. To find the scale of the map in question, we need to divide the actual distance on land (4km) by the distance on the map (2cm). First, we need to convert 4 km to cm: 4 km = 4 x 10^3 m = 4 x 10^3 x 100 cm = 4 x 10^5 cm Now, we divide the actual distance on land (4 x 10^5 cm) by the distance on the map (2 cm): (4 x 10^5 cm) / (2 cm) = 2 x 10^5 So the scale of the map is 1 : 2 x 10^5, which is equivalent to 1:200,000.

The peeling off of surface layers of a rounded boulders during mechanical weathering is called________

Answer Details

The peeling off of surface layers of a rounded boulder during mechanical weathering is called exfoliation. Exfoliation is a type of mechanical weathering process that occurs when layers of rock or boulder peel off from the surface due to pressure release. The process usually occurs in rocks that have been exposed to intense heat, pressure, and other environmental factors for a long time. As a result of these factors, the rock expands and contracts repeatedly, causing the surface layers to crack and break apart. Over time, these cracks become wider, and the layers begin to peel off, revealing the smooth and rounded boulder underneath. Exfoliation is often seen in granitic rocks, where the outer layers peel off to form concentric layers resembling an onion. The process can also occur in other rock types such as sandstone and shale. Overall, exfoliation is an important geological process that contributes to the breakdown and erosion of rocks over time, shaping the landscape around us.

What type of climate has the station___________

Answer Details

Climate is the weather conditions prevailing in an area in general or over a long period.

Which of the following is not a form of mass movement?

Answer Details

The answer is "earthquake" as it is not a form of mass movement. Mass movement refers to the process by which large amounts of soil, rock, and other debris move down a slope under the influence of gravity. Landslides, rockslides, and talus creep are all examples of mass movement. An earthquake, on the other hand, is a sudden shaking of the earth's surface caused by the movement of tectonic plates. While earthquakes can cause landslides and other types of mass movement, the earthquake itself is not a form of mass movement. Instead, it is a geological event that can trigger mass movement in the surrounding area.

The two most important factors which account for the pattern of population distribution in West Africa are

Answer Details

Physical conditions determine the population distribution in Africa. The topography of an area, how favourable it is determine population distribution. People tend to move from a place to another if the condition is not favourable. Nomads for example move their cattles around for pastures to graze.

One of the leading industrial nations of the world ranking second in manufacturing output after the USA is__________

Answer Details

Manufacturing industry in Japan is the most diversified with various advanced industries which are exceedingly successful. Japan's major export industries includes automobiles, consumer electronics, computers, semiconductors, and iron and steel. Additionally, key industries in Japan's economy are mining, nonferrous metals, petrochemicals, pharmaceuticals, bioindustry, shipbuilding, aerospace, textiles, and processed foods

Lines joining places of equal sunshine duration on maps are__________

Answer Details

The lines joining places of equal sunshine duration on maps are called Isohel. Isohel is a type of contour line that connects all the points on a map that receive the same amount of sunlight in a given period, usually a day or a year. These lines are similar to contour lines on a topographic map that connect points of equal elevation. Isohels are used to show areas with similar amounts of sunshine and can be used to analyze patterns in climate and weather. For example, isohel maps can help identify areas with higher or lower amounts of sunlight and help to plan agriculture, solar power generation, and other activities that depend on sunlight.

A well will always contain water if its dug_________

Answer Details

The sans bearing water or the acquifier is a body of permeable rock which can contain or transmit water. The body (acquifier) is generally a rock with permeability and porosity. They can hold water and provide sufficient rate. If a well is drilled, one does not always get water unless the acquifier is reached

'It is a port that specializes in receiving and redistributing goods to the neighboring countries'. Which of the following ports is described in the preceding statement?

Answer Details

The port described in the statement is an Entrepôt. An entrepôt is a port or a place where goods are stored temporarily before being re-exported to other countries. It acts as a distribution center for goods, receiving them from one place and then redistributing them to other places. A ferry port is a place where ferries arrive and depart, carrying passengers and vehicles across bodies of water. An outport is a smaller port that is located away from the main port and is usually used for loading and unloading goods. A river port is a port located on a river and is used for loading and unloading goods and passengers along the river.