Multiple choice

Which among the following heavenly bodies is the source of energy to our planet earth?

  1. Planets

  2. Sun

  3. Satellites

  4. Meteorites

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Stars are luminous objects. They have their own light. All the stars, like Sun, consist of hydrogen atoms which fuse together to emit heat and light, which fall on the earth. 

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