Multiple choice

An animal is kept in an air tight jar. After some time, it was found that the animal was struggling to remain alive and its movements were reduced. Why?

  1. Humidity in the jar increased

  2. Carbon dioxide in the jar has decreased and oxygen has increased

  3. Oxygen in the jar has decreased and carbon dioxide has increased

  4. Both oxygen and carbon dioxide have increased

  5. There is no proper space in the jar
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

As we know, during respiration, oxygen is inhaled and carbon dioxide is exhaled. The animal, which was kept in the air tight jar, exhaled carbon dioxide and inhaled oxygen. After some time, all the oxygen of the jar was inhaled by the animal and carbon dioxide was exhaled, so the jar is filled with the carbon dioxide and there is a lack of oxygen, as a result the movements of the animal have reduced.

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