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ICSE Class 9 Chemistry Question 2 of 31

Atmospheric Pollution — Question 13

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Question

Question 13

State the impact of acid rain on the environment, other than soil chemistry and water bodies.

Answer

Acid rain affects :

  1. Plants in numerous ways — affects transpiration, decolourises leaf pigments, retards growth of crops and reduces rate of photosynthesis.
  2. Humans — Acid rain gets absorbed by plants, animals and directly or indirectly toxicity enters food chain affecting humans.
  3. Material Damage — Corrodes metallic surfaces, disintegrates paper and leather, weakens building material such as statues, sculptures, marbles, limestone [CaCO3] etc.
    CaCO3 + H2SO4 ⟶ CaSO4 + H2O + CO2