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Sources of Energy — Science STD 10 — Question

CBSE BoardEnglish MediumSTD 10ScienceSources of Energy1 Mark
MCQ
Acid rain happens because :
  • A
    Sun leads to heating of upper layer of atmosphere.
  • B
    Burning of fossil fuels release oxides of carbon, nitrogen and sulphur in the atmosphere.
  • ✓
    Electrical charges are produced due to friction amongst clouds.
  • D
    Earth atmosphere contains acids.
✓

Answer

Correct option: C.
Electrical charges are produced due to friction amongst clouds.
When oxides of carbon, nitrogen and sulphur react with water vapours in the atmosphere, they form carbonic acid, nitric acid and sulphuric acid respectively. These acids come down to the earth with rain.

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