list of main constituents of biogas. mention two disadvantages of hydro power plant
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Biogas comprises primarily methane (CH4) and carbon dioxide(CO2) and may have small amounts of hydrogen sulphide (H2S), moisture and siloxanes
Disadvantages of Hydro power plant:
(i)Highly expensive to construct.
(ii)Dams cannot be constructed on all river sites.
(iii)Large areas o human habitation and agricultural fields get submerged.
(iv)People face social and environmental problems.
Disadvantages of Hydro power plant:
(i)Highly expensive to construct.
(ii)Dams cannot be constructed on all river sites.
(iii)Large areas o human habitation and agricultural fields get submerged.
(iv)People face social and environmental problems.
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The main constiuent of bio gas is methane(74%),hydrogen sulphide,carbon dioxide and hydrogen.
the disadvantages of hydro power plant are:
A large variety of plants,animals and their habitats get submerged under water.
it decreases the fertility of soil in the downstream area and affects crops.
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