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Question

An animal placed in an airtight jar and is kept in sunlight, as shown in the figure.

How can the animal be helped to survive for a long time?
  1. By placing a green plant in it
  2. By removing all the air through a vacuum pump
  3. By placing a burning candle in it
  4. By placing another mouse in it


Solution

The correct option is A By placing a green plant in it
The animal that is kept in the jar uses oxygen and releases carbon dioxide while respiring. If we place a green plant in the jar, the plant uses CO2 and releases oxygen which enables the animal to breathe and survive for a longer time.

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