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Question

An ideal alternate source of energy for electricity generation other than from coal, must be:

A
Scarce
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B
Non-renewable
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C
Sustainable
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D
Renewable
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Solution

The correct option is D Renewable
Electricity is mainly generated from fossil fuels like coal, in thermal power plants. But, coal is non-renewable and non-ecofriendly source of energy, as it emits greenhouse gases like CO2 that damage the environment. So, an alternative source of energy for generating electricity must be:
  • Renewable - available in abundant quantities and considerably replenishable.
  • Sustainable - avoidance of the depletion of natural resources in order to maintain an ecological balance.

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