Olympiad tester

ding 1

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Q1. Which of the following is an INCORRECT statement regarding the Earth's domains?

A. Lithosphere is solid crust
B. Biosphere exists where land, water, air meet
C. Hydrosphere only includes oceans
D. Atmosphere protects from harmful rays

Explanation: Hydrosphere includes all forms of water—liquid, solid, and gas.

Q2. Identify the correct match for historical sources

A. (i), (ii), (iii)
B. (ii), (iii), (iv)
C. (i), (iv)
D. All

Explanation: Coins are archaeological sources, not literary.

Q3. Which state borders Nepal, Bhutan, and Bangladesh?

A. Sikkim
B. West Bengal
C. Assam
D. Bihar

Explanation: West Bengal uniquely touches all three countries.
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