Question

In the given experiment, fish in the second and third jar die due to the ____________

• A. Lack of carbon dioxide
• B. Lack of oxygen
• C. Lack of water
• D. Lack of food

Answer 1

The correct option is B

Lack of oxygen

In the given experiment, fish in the second and third jar die due to the lack of oxygen. Aquatic organisms need dissolved oxygen to respire. It is necessary for the survival of fish and other aquatic organisms.