Solar energy disadvantages:-solar radiation is depending on geographical location-solar radiation is depending on the cycle day/night-capture of solar radiation is requiring a large amount of necessary materialsWind energy disadvantages:-wind turbines are noisy and can become dangerous for wild birdsHydroelectric energy disadvantages:- affects ecology by the process of vegetation decaying, which is releasing methan, which is also responsible with the greenhouse effects-flooding is another problem caused by the dam releasing;Geothermal energy disadvantages:- geothermal wells drilling is costly-together with the heat, poisonous gasses could be released
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