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Answer: These sources are continuously replenished by nature and are never exhausted.

Hydroelectric energy depends on the water cycle, which is driven by the sun; solar energy is received from the sun every day; wind is produced by the unequal heating of the earth’s surface by the sun. Unlike coal and petroleum, which take millions of years to form and are used up, these sources are available again and again. They also cause little or no pollution.

Doubtly AI · 25 Oct 2026 AI-verified · Oct 2026 Report
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