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प्रश्न
State two disadvantages of producing hydroelectricity.
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उत्तर
Disadvantages of producing hydroelectricity:
1. Due to the construction of dams over the rivers, plants and animals of that place get destroyed or killed.
2. The ecological balance in the downstream areas of rivers gets disturbed.
संबंधित प्रश्न
An electron emitter must have _____________ work function and ___________ melting point.
1 J = ______ calorie.
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Choose one or more correct alternatives.
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