The term 'SIAL' refers to a crust rich in: MCQ with Answer and Explanation

The term 'SIAL' refers to a crust rich in:
A. Silica and Aluminium
B. Sulphur and Aluminium
C. Silicon and Iron
D. Silica and Magnesium
Answer: Option A
Solution (By JKSSB Mock Tests)
SIAL is the upper continental crust composed mainly of silica and aluminium.

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Which river drains the largest basin in the world?
A. Nile
B. Mississippi
C. Yangtze
D. Amazon

Correct Answer: Option D


Explanation:
The Amazon River Basin is the largest drainage basin in the world.

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The mesopause is located between:
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Correct Answer: Option C


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Correct Answer: Option A


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