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NEET2009BotanyEnvironmental IssuesActual

Rain is called acid-rain when its pH is below

Options

  1. A7
  2. B6.5
  3. C6
  4. D5.6.

Correct answer

D. 5.6.

Step-by-step solution

Acid rain is rainfall and other forms of precipitation with a pH less than 5 . pH of normal rain is 5.6-6.5 . It is caused by the large scale emission of acidic gases into the atmosphere from thermal power plants, industries and automobiles.

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