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प्रश्न
State two advantages and two disadvantages of using hydro-energy for producing electricity.
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उत्तर
Advantages:
(i) When electricity is generated, no greenhouse gases are made.
(ii) It is an inexhaustible source of energy.
Disadvantages:
(i) The dam is expensive to build.
(ii) By building a dam, the nearby area has to be flooded and this could affect nearby wildlife and Plants.
संबंधित प्रश्न
Name five different forms of energy.
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A stretched wire
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State the energy changes in the following case while in use:
an electric toaster.
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State the energy transformation on the following:
Electricity is obtained from wind energy.
Give one example when:
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