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Water:advantage-used in generating electricity.
disadvan.-can cause death if seas or ocean floods 
Sunlight:advan.-used for the same reason generating electricity.
disadv.-can cause skin cancer.
Air:used for generating electricity
disadvan.-can cause soil erosion
Biogas:used for domestic purpose
disadvan-causes air pollution
Soil:is responsible for life on earth
disadvan:causes water pollution.
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