Which atmospheric phenomenon causes stars to twinkle? MCQ with Answer and Explanation

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Which atmospheric phenomenon causes stars to twinkle?

A. Reflection

B. Dispersion

C. Diffraction

D. Refraction

Answer: Option D

Solution (By JKSSB Mock Tests)

Stars appear to twinkle because their light is refracted by layers of Earth's atmosphere.

This question belongs to: Geography GK Physical Geography

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Practice More Physical Geography Questions

Question #1

Loess deposits are formed by:

A. Glacial Deposition

B. Wind Deposition

C. Volcanic Activity

D. River Action

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Correct Answer: Option B

Explanation:
Loess consists of fine wind-blown silt deposits found in many parts of the world.

This question belongs to: Geography GK Physical Geography

Question #2

Jet streams are found in which atmospheric layer?

A. Exosphere

B. Mesosphere

C. Upper Troposphere

D. Troposphere

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Correct Answer: Option C

Explanation:
Jet streams are fast-moving air currents located in the upper troposphere near the tropopause.

This question belongs to: Geography GK Physical Geography

Question #3

The NIFE layer of the Earth primarily consists of:

A. Nickel and Iron

B. Silicon and Magnesium

C. Silicon and Aluminium

D. Magnesium and Iron

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Correct Answer: Option A

Explanation:
NIFE is derived from Ni (Nickel) and Fe (Iron), representing the composition of the Earth's core.

This question belongs to: Geography GK Physical Geography

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