Multiple choice

Which of the following is a false statement?

  1. Carbon dioxide is used in making soft drinks or cold drinks.

  2. Sulphur dioxide and nitrogen dioxide cause air pollution.

  3. Oxygen is called active air.

  4. Nitrogen is the largest constituent of air that dilutes the activity of oxygen.

  5. Carbon dioxide gas is vital for respiration.
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

Oxygen is vital for respiration, not carbon dioxide.

Keep practicing — related questions