POST UTME BSU 2020 Geography | Objective

Practice these randomly selected questions to test your readiness.

Question 1
A soil profile shows a layer of clay at a depth of 20 centimeters. If the soil is eroded at a rate of 1 centimeter per year, calculate the time it will take for the clay layer to be completely eroded using the formula: t = d / r, where t is the time, d is the depth of the clay layer, and r is the erosion rate.
A. 20
B. 200
C. 20
D. 2000
Question 2
The following diagram shows a geological map of a region. What is the name of the rock unit labeled 'A'?
A. A granite
B. A basalt
C. A sandstone
D. A shale
Question 3
A map shows a region with a scale of 1:100,000. If the distance between two points on the map is 5 centimeters, calculate the actual distance between the two points in kilometers using the formula: d = s * S, where d is the actual distance, s is the distance on the map, and S is the scale.
A. 0.05
B. 0.5
C. 5
D. 50
Question 4
The Benue Trough is a major geological feature in Nigeria. What is the primary type of rock formation found in this region?
A. Igneous rocks
B. Sedimentary rocks
C. Metamorphic rocks
D. Volcanic rocks
Question 5
The Earth's atmosphere is composed of approximately 78% nitrogen, 21% oxygen, and 1% other gases. What is the percentage of oxygen in the atmosphere?
A. 20%
B. 21%
C. 22%
D. 23%
Question 6
A rock sample contains 80% quartz, 15% feldspar, and 5% mica. If the sample weighs 100g, what is the weight of the quartz in the sample?
A. 60g
B. 70g
C. 80g
D. 90g
Question 7
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
B. Chemical weathering
C. Biological weathering
D. Hydrolysis
Question 8
The diagram below shows a map of a city. Which of the following is a characteristic of the city?
A. The city is located near a river
B. The city is located near a lake
C. The city is located near a sea
D. The city is located near a mountain
Question 9
The Niger Delta region of Nigeria is characterized by a complex network of rivers and creeks. What is the primary reason for this complex network?
A. Tectonic activity
B. Weathering and erosion
C. Human activities
D. Glacial activity
Question 10
The concept of 'carrying capacity' in population studies refers to the maximum number of individuals of a species that an environment can sustainably support. Which of the following factors is NOT a determinant of carrying capacity?
A. Availability of food and water
B. Predation and disease
C. Climate and temperature
D. Technological advancements
Question 11
The map below shows the distribution of vegetation in a tropical region. What type of vegetation is found in the area marked 'A'?
A. Rainforest
B. Savanna
C. Mangrove
D. Desert
Question 12
A river has a discharge of 1000 cubic meters per second. If the river flows for 8 hours a day, calculate the total volume of water discharged in a day using the formula: V = Q * t, where V is the volume, Q is the discharge, and t is the time.
A. 8000000
B. 800000
C. 80000000
D. 8000000
Question 13
The Jos Plateau is a region of Nigeria known for its rich mineral resources. What is the primary type of mineral found in this region?
A. Iron ore
B. Copper ore
C. Gold
D. Coal
Question 14
A company is planning to establish a new factory in a region with a population of 100,000 people. The company wants to ensure that the factory is located in an area with a high level of economic activity. Which of the following economic indicators would be most relevant in determining the suitability of the location?
A. Gross Domestic Product (GDP)
B. Unemployment Rate
C. Inflation Rate
D. Poverty Rate
Question 15
The diagram below represents a simple circuit. Which of the following is the correct equation for the current in the circuit?
A. ( I = rac{V}{R} )
B. ( I = rac{R}{V} )
C. ( I = rac{V}{sqrt{R}} )
D. ( I = rac{sqrt{R}}{V} )

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