Multiple choice

Aerosols reduce primary productivity by

  1. decreasing oxygen concentration in the atmosphere

  2. reducing photosynthesis

  3. competing with carbon dioxide

  4. being toxic to chloroplast

  5. -

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Aerosols target carbon dioxide and combines with it easily. It makes carbon dioxide unavailable for photosynthesis, therby decreasing primary productivity.