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How do oxides of nitrogen and sulfur in the atmosphere contribute to acid rain?

Options

  1. AThey directly form raindrops with low pH.
  2. BThey react with carbon dioxide in the atmosphere.
  3. CThey dissolve in rainwater and form acids.
  4. DThey create an aerosol of fine particles.

Correct answer

C. They dissolve in rainwater and form acids.

Step-by-step solution

Oxides of nitrogen and sulfur in the atmosphere dissolve in rainwater and form nitric acid (HNO 3 ) and sulfuric acid (H 2 SO 4 ), contributing to the acidity of rain.

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