In spite of being cheaper, pollution free and renewable sources of power, significance of hydroelectricity has declined."justify the statement by giving any four arguments.
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High cost of building dams.
Adverse impact on environment.
Adverse impact on environment.
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As we are becoming more more than an industrial day by day hour power consumption is increasing highly.
The renewable power sources are cheaper and pollution free but they are rejected for the industrial scale power generation.
Because,the setup and maintenance cost is very high for this type of power generation.
But the power generation amount is not so efficient as compared with the non-renewable energy sources.
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