State any two names of pollution free energy sources. Which one among them is the best one?
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8
Answer:CNG, LPG
Explanation:
CNG is better as it can be easily stored and transported and doesnt leave residue
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3
Answer:
The most efficient forms of renewable energy geothermal, solar, wind, hydroelectricity and biomass. Biomass has the biggest contribution with 50%, followed by hydroelectricity at 26% and wind power at 18%. Geothermal energy is generated by harnessing the Earth's natural heat.
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