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Question

(a) What is the difference between a thermal power plant and a hydro power plant?
(b) Which of the two causes serious air pollution and how?


Solution

(a)
Hydropower plant Thermal power plant
1. A hydropower plant uses flowing water to rotate turbines. A thermal power plant uses coal, oil or gas to drive turbines.
2. A hydropower plant does not cause air pollution. A thermal power plant causes air pollution.

 (b) A thermal power plant causes serious air pollution. This is because, in a thermal power plant, large amounts of fossil fuels are burnt every day to generate electricity.

Science
Lakhmir Physics 2013
Standard X

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