Multiple choice

What is oxygen depletion?

  1. Increase in the concentration of oxygen in water

  2. Decrease in the concentration of oxygen in water

  3. Evaporation of oxygen from water

  4. Transpiration of oxygen from plants

  5. Absorption of oxygen by trees
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Due to various types of pollution, concentration of oxygen decreases in the water which is hazardous to aquatic life and humans beings for survival. This is called oxygen depletion.

Keep practicing — related questions