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Disadvantages of geothermal power

Answer Text:
Disadvantages of geothermal power
(a) Causes noise pollution from generation plant.
(b) Not available in many areas where there aren’t hot springs and geysers.
(c) Gases released with steam may pollute the environment e.g. sulphur dioxide, hydrogen sulphide, methane, ammonia, etc.
(d) Its exploration is expensive because it requires expensive technology.