Multiple choice

What is the “ultimate” source of energy for all living organisms?

  1. Moon

  2. Sun

  3. Photosynthesis

  4. Plants
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Though plants act as a source of energy for all the heterotrophs, but even plants depend upon the energy of sun for the formation of their food. Therefore, sun is said to be the ultimate source of energy.

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