Multiple choice

How is the growth of algae in water bodies harmful to aquatic organisms?

  1. It releases poisonous chemicals in water bodies.

  2. It decreases oxygen level in water bodies.

  3. It increases CO2 level in water bodies.

  4. It increases the temperature of water bodies.

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

It decreases oxygen level in water bodies.