Multiple choice

Which of the following is the effect of siltation in water pollution?

  1. Reduction in primary production

  2. Excessive growth of phytoplanktons

  3. Heavy mortality among fishes

  4. Rapid multiplication of dinoflagellates

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

Siltation is the phenomenon by which the gills of fishes are deposited with silt. This causes heavy mortality among fishes.