POST UTME DELSU 2020 Geography | Objective

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Question 1
The type of vegetation found in the savannas of Nigeria is characterized by
A. Tall Trees and Dense Canopy
B. Short Grasses and Scattered Trees
C. Dense Forest and Undergrowth
D. Mangrove Swamps and Salt Marshes
Question 2
A river's gradient is affected by the following factors. Which of the following is NOT a factor that affects a river's gradient?
A. Tectonic uplift
B. Weathering and erosion
C. Sea level changes
D. River discharge
Question 3
The process of soil formation through the weathering of rocks is known as
A. Erosion
B. Deposition
C. Weathering
D. Leaching
Question 4
The diagram below shows the process of soil erosion through
A. Water Erosion
B. Wind Erosion
C. Glacial Erosion
D. Chemical Erosion
Question 5
The concept of 'carrying capacity' in population studies refers to the maximum number of individuals of a species that an environment can support without degradation of the environment. Which of the following is a factor that affects carrying capacity?
A. Availability of food resources
B. Predation pressure
C. Disease prevalence
D. Climate change
Question 6
The process of plate tectonics involves the movement of the Earth's lithosphere, resulting in the creation of mountain ranges and the formation of oceanic and continental crust. What is the term for the movement of the Earth's lithosphere at a rate of several centimeters per year?
A. Continental drift
B. Oceanic drift
C. Plate convergence
D. Plate divergence
Question 7
A rock sample has the following composition: 50% quartz, 30% feldspar, and 20% mica. Calculate the density of the rock using the following densities: quartz = 2.65 g/cm³, feldspar = 2.55 g/cm³, and mica = 2.85 g/cm³.
A. 2.65 g/cm³
B. 2.75 g/cm³
C. 2.85 g/cm³
D. 3.05 g/cm³
Question 8
The process of soil erosion involves the removal of soil particles from one location to another through the action of wind or water. What is the term for the movement of soil particles by wind?
A. Soil creep
B. Soil erosion
C. Soil deposition
D. Soil deflation
Question 9
The diagram below shows a map of a region with a river flowing through it. Which of the following landforms is NOT a result of the river's erosional activity?
A. A meander
B. A valley
C. A waterfall
D. A waterfall
Question 10
The process of soil formation involves the interaction of several factors, including climate, topography, and vegetation. Which of the following is NOT a primary factor in soil formation?
A. Temperature
B. Topography
C. Vegetation
D. Gravity
Question 11
The concept of 'sustainable development' in environmental management refers to the ability of a country to meet its current needs without compromising the ability of future generations to meet their own needs. Which of the following is a principle of sustainable development?
A. Inter-generational equity
B. Intra-generational equity
C. Environmental stewardship
D. All of the above
Question 12
A recent study on the effects of climate change on Nigeria's agricultural sector found that the average temperature in the country has increased by 1.5°C over the past 50 years. What is the likely impact of this temperature increase on crop yields?
A. Increased crop yields due to longer growing seasons
B. Decreased crop yields due to increased evapotranspiration
C. No impact on crop yields
D. Increased crop yields due to increased CO2 levels
Question 13
The Niger River is the longest river in West Africa and flows through several countries, including Nigeria. What is the primary reason for the Niger River's course?
A. Tectonic activity
B. Volcanic activity
C. River erosion and deposition
D. Sea level rise
Question 14
The diagram below shows a simple harmonic motion. Which of the following equations represents the displacement of the object at time t?
A. \frac{dx}{dt} = \omega\sqrt{A^2 - x^2}
B. \frac{d^2x}{dt^2} = -\omega^2x
C. \frac{dx}{dt} = \omega\sqrt{x^2 - A^2}
D. \frac{d^2x}{dt^2} = \omega^2x
Question 15
The Benue Trough is a major geological feature in Nigeria that stretches from the Benue River in the north to the Niger Delta in the south. What is the primary reason for the formation of the Benue Trough?
A. Tectonic activity
B. Volcanic activity
C. River erosion and deposition
D. Sea level rise

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