Multiple choice

The taking in of air rich in oxygen into the body is called

  1. Exhalation

  2. Inhalation

  3. Respiration

  4. Photosynthesis

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

Exhalation is giving out of air rich in carbon dioxide. Respiration is breakdown of food material to release energy and photosynthesis is the process of manufacturing food by the plants by using raw materials.