Question

An animal is kept in an airtight jar as shown in the arrangement here. After some time it was found that the animal struggled to be alive and its movements reduced. Why?

• A. Oxygen in the jar decreased and carbon dioxide increased
• B. Carbon dioxide in the jar decreased and oxygen increased
• C. Both oxygen and carbon dioxide increased in the jar
• D. Humidity in the jar increased

Answer 1

The correct option is A Oxygen in the jar decreased and carbon dioxide increased

Under the airtight jar oxygen in the jar decreases and carbon dioxide increases.

The physical and chemical processes( such as breathing and diffusion) by which an organism supplies its cells and tissues with the oxygen needed for the metabolism and relieves them of the carbon dioxide formed in energy producing reactions.

Option A is correct.