Q.

Which is the ultimate source of energy?

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a

Water

b

Uranium

c

Sun

d

Fossil fuel

answer is A.

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Detailed Solution

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  • The ultimate source of all kinds of energy on earth is the Sun, either directly or indirectly. 
  • Fossil fuels such as coal, oil and gas, are the transformed forms of plants (and animals) which once lived on the earth and grew, capturing the energy of the sun.
  • The Sun is an extremely massive mass of gas, where continuous thermo-nuclear reactions are taking place producing enormous quantities of heat and light.
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