POST UTME UNILORIN 2018 Geography | Objective

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Question 1
In the context of soil formation, what is the primary role of clay minerals in the formation of argillic horizons?
Correct A. To act as a cementing agent between sand-sized particles
B. To contribute to the formation of a hard, impermeable layer
C. To facilitate the leaching of soluble salts
D. To increase the soil's water-holding capacity

Correct Answer: A

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Question 2
A river's discharge is measured at two different points, A and B, over a period of 24 hours. At point A, the discharge is 100 m3/s, and at point B, the discharge is 120 m3/s. What is the average velocity of the river between points A and B?
A. 80 m/s
Correct B. 100 m/s
C. 120 m/s
D. 140 m/s

Correct Answer: B

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Question 3
A farmer in a rural area of Nigeria is considering the adoption of a new irrigation system. The system requires an initial investment of ₦500,000 and will save the farmer ₦200,000 per year in water costs. However, the system will also require an additional ₦100,000 per year in maintenance costs. What is the net present value of the system over a period of 5 years, assuming a discount rate of 10%?
A. ₦1,200,000
Correct B. ₦1,500,000
C. ₦2,000,000
D. ₦2,500,000

Correct Answer: B

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Question 4
A population of 1000 people is growing at a rate of 5% per year. What is the population after 10 years, assuming a constant growth rate?
A. 1638
Correct B. 1738
C. 1838
D. 1938

Correct Answer: B

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Question 5
A map of Nigeria shows the location of several cities, including Lagos, Abuja, and Kano. What is the primary reason for the concentration of cities in the southern part of the country?
Correct A. The presence of fertile soil and a favorable climate
B. The availability of natural resources, such as oil and gas
C. The presence of a large population and a high demand for housing
D. The presence of a major transportation hub, such as a port or airport

Correct Answer: A

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Question 6
The process of weathering that involves the breakdown of rocks into smaller fragments due to the expansion and contraction of water within the rock's pores is known as
A. Mechanical weathering
Correct B. Chemical weathering
C. Physical weathering
D. Biological weathering

Correct Answer: B

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Question 7
A population of 1000 individuals is growing at a rate of 10% per annum. If the initial population is 1000, what will be the population after 5 years?
A. 12000
B. 15000
Correct C. 18000
D. 20000

Correct Answer: C

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Question 8
The diagram below shows a cross-section of a river valley. What is the name of the landform labeled 'A'?
Correct A. Valley
B. Hill
C. Mountain
D. Plateau

Correct Answer: A

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Question 9
The process of soil formation that involves the breakdown of rocks into smaller fragments due to the action of living organisms is known as
A. Mechanical weathering
B. Chemical weathering
Correct C. Biological weathering
D. Physical weathering

Correct Answer: C

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Question 10
The diagram below shows a graph of population growth over time. What is the name of the stage labeled 'B'?
A. Exponential growth
B. Logarithmic growth
Correct C. Sigmoid growth
D. Stationary growth

Correct Answer: C

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Question 11
In the context of Economic Geography, what is the primary factor that determines the location of a manufacturing industry?
A. Transportation costs
Correct B. Availability of raw materials
C. Labor costs
D. Market demand

Correct Answer: B

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Question 12
What is the process by which the Earth's plates move apart, resulting in the creation of new oceanic crust?
A. Continental drift
B. Plate convergence
Correct C. Sea-floor spreading
D. Subduction

Correct Answer: C

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Question 13
A diagram of a soil profile is shown below. What is the primary characteristic of the soil in the B horizon?
A. High concentration of organic matter
B. High concentration of iron oxide
C. High concentration of calcium carbonate
Correct D. High concentration of clay minerals

Correct Answer: D

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Question 14
What is the primary factor that determines the formation of a delta?
Correct A. River discharge
B. Tectonic activity
C. Sea level
D. Climate

Correct Answer: A

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Question 15
A diagram of a river system is shown below. What is the primary function of the meandering section?
A. To erode the surrounding landscape
Correct B. To transport sediment
C. To deposit sediment
D. To change course

Correct Answer: B

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Question 16
The population growth rate of a city is 3.5% per annum. If the current population is 1,000,000, what will be the population after 5 years?
A. 1,063,000
B. 1,075,000
Correct C. 1,087,500
D. 1,100,000

Correct Answer: C

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Question 17
A rock sample is composed of 60% quartz, 20% feldspar, and 20% mica. If the sample weighs 100g, what is the weight of quartz in the sample?
Correct A. 30g
B. 40g
C. 50g
D. 60g

Correct Answer: A

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Question 18
A farmer is cultivating a plot of land with a slope of 10%. If the rainfall in the area is 400mm per annum, what is the expected runoff in the area?
A. 100mm
B. 150mm
Correct C. 200mm
D. 250mm

Correct Answer: C

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Question 19
A map shows a river flowing through a valley with a width of 5km. If the river flows at an average speed of 2m/s, what is the time taken for the river to flow through the valley?
A. 10 minutes
B. 20 minutes
Correct C. 30 minutes
D. 40 minutes

Correct Answer: C

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Question 20
A climate graph shows a temperature range of 20-30°C. If the average temperature is 25°C, what is the standard deviation of the temperature range?
A. 2°C
Correct B. 3°C
C. 4°C
D. 5°C

Correct Answer: B

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Question 21
The diagram below shows a cross-section of a river valley. Identify the type of soil formation process that occurred in the area marked 'A'.
A. Dissolution
Correct B. Deposition
C. Erosion
D. Weathering

Correct Answer: B

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Question 22
A population of 100,000 people is growing at a rate of 5% per annum. Calculate the population after 10 years, given that the initial population was 50,000.
A. 125,000
B. 150,000
Correct C. 175,000
D. 200,000

Correct Answer: C

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Question 23
The diagram below shows a map of a city's transportation network. Identify the type of settlement pattern that is most likely to be found in the area marked 'B'.
A. Concentric Zone Model
Correct B. Sector Model
C. Multiple Nuclei Model
D. Radial Model

Correct Answer: B

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Question 24
A farmer is considering two different types of fertilizers to apply to his crops. Fertilizer A costs ₦500 per bag and Fertilizer B costs ₦750 per bag. If the farmer needs 10 bags of fertilizer, how much will he save by choosing Fertilizer A over Fertilizer B?
Correct A. ₦2500
B. ₦3000
C. ₦3500
D. ₦4000

Correct Answer: A

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Question 25
The diagram below shows a cross-section of a mountain range. Identify the type of soil formation process that occurred in the area marked 'C'.
Correct A. Weathering
B. Erosion
C. Deposition
D. Dissolution

Correct Answer: A

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