Question

4. Stars appear to twinkle due to -
a. Air currents
c. Excessive nuclear reaction
b. Varying intensity of stars
d. Burning of the gases.​

Answer 1

Answer:

d) burning of gases

Explanation:

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Answer 2

Answer:

The movement of air (sometimes called turbulence) in the atmosphere of Earth causes the starlight to get slightly bent as it travels from the distant star through the atmosphere down to us on the ground. This means that some of the light reaches us directly and some gets bent slightly away.

Explanation:

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