Multiple choice

Pollution is not caused by

  1. thermal power plant

  2. automobiles

  3. radioactive power plant

  4. hydroelectric power plant
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Hydroelectricity is the term referring to electricity generated by hydropower; the production of electrical power through the use of the gravitational force of falling or flowing water. It causes no pollution.

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