Which element is the second most abundant in the Earth's crust? MCQ with Answer and Explanation

Which element is the second most abundant in the Earth's crust?
A. Silicon
B. Iron
C. Magnesium
D. Calcium
Answer: Option A
Solution (By JKExamLibrary)
Silicon makes up about 27.7% of the Earth's crust and combines with oxygen to form silicate minerals.

This question belongs to: Geography GK Physical Geography

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Practice More Physical Geography Questions

Question #1 Report Error
Which ocean is the smallest in the world?
A. Arctic Ocean
B. Southern Ocean
C. Indian Ocean
D. Atlantic Ocean

Correct Answer: Option A


Explanation:
The Arctic Ocean is the smallest and shallowest ocean on Earth.

This question belongs to: Geography GK Physical Geography
Question #2 Report Error
The hanging valleys are characteristic features of:
A. Glacial Erosion
B. Marine Erosion
C. Wind Erosion
D. River Erosion

Correct Answer: Option A


Explanation:
Hanging valleys are formed when tributary glaciers join larger glaciers, leaving elevated valley floors.

This question belongs to: Geography GK Physical Geography
Question #3 Report Error
Which mineral is commonly called 'Fool's Silver'?
A. Molybdenite
B. Pyrite
C. Mica
D. Galena

Correct Answer: Option B


Explanation:
Pyrite resembles precious metals due to its metallic luster and is often called Fool's Gold or Fool's Silver.

This question belongs to: Geography GK Physical Geography