World Geography | General Knowledge| FPSC, SPSC, PPSC all competitive Exams | mosaicbro.com

World Geography | General Knowledge| FPSC, SPSC, PPSC all competitive Exams

7 of 124 questions (Page 1 of 18)

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1 Of the total volume of the earth, the three layers – the crust, the mantle and the core, constitute respectively ______.
Correct Answer: D
Explanation: The crust makes up 0.5%, the mantle 16.5%, and the core 83% of Earth's total volume.
2 Which of the following layers of the earth is believed to have the heaviest mineral materials of highest density?
Correct Answer: A
Explanation: The core contains dense materials like iron and nickel.
3 The heavier silicates named as ‘Sima’ or silica + magnesium are most abundant in the
Correct Answer: D
Explanation: Sima is found predominantly in ocean floors.
4 The principal reason for the formation of metamorphic rocks is ______.
Correct Answer: C
Explanation: Metamorphic rocks form under extreme heat and pressure.
5 Which of the following regions of the world is most thickly populated?
Correct Answer: B
Explanation: South Asia has one of the highest population densities globally.
6 What is the average density of population in the world in 2013?
Correct Answer: B
Explanation: The global population density in 2013 was approximately 37 persons per sq. km.
7 Which of the following factors is responsible for variation in the flora and fauna in different parts of the world?
Correct Answer: A
Explanation: Physical environment variations lead to diverse flora and fauna.
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