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Solar, Wind, Hydropower, Geothermal & Biomass are sources of renewable energy. Which amongst these according to you is the most viable long term solution to environmental conservation?
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SUN..... The ever remaininig source of energy.


Since the existence of life is attributed to Solar energy, we may theoretically assume that as long as there is life in earth, the sun is going to stay providing light and energy. All the other means like Wind, Hydropower are going to be unpredictable considering the climatic changes happening now and even more severe changes, expected to happen considering the rate at which the environment is disturbed. So....SUN and the only SUN is the ever dependable source of renewable energy for us.
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Solar


Its the cheapest!
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