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Physics

Grade-10

Easy

Question

Which is the ultimate source of energy?

Sun
Water
Uranium
Fossil fuel

hint Hint:

Sunlight is essential for photosynthesis. Sunlight provides energy for the reaction between carbon dioxide and water to produce glucose and oxygen.

The correct answer is: Sun

The sun is called the ultimate source of energy because it is the source of almost all energies of the earth. Plants convert light energy from the sun into chemical energy (food) by the process of photosynthesis.

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