Chemistry
Grade-6
Easy
Question
Trees help balance the amount of _________ and oxygen in the air
- Nitrogen oxide
- Nitrogen dioxide
- Ozone
- Carbon dioxide
Hint:
Trees take in this gas.
The correct answer is: Carbon dioxide
Trees help balance the amount of carbon dioxide and oxygen in the air.
Green plants and trees present in forests utilize carbon dioxide from the environment during the process of photosynthesis and release oxygen into the atmosphere. This oxygen is inhaled by animals during respiration. Animals give off carbon dioxide when they breathe, which is absorbed by plants. Thus, the cycle of oxygen and carbon dioxide continues. Forests contain a large number of plants and trees, which helps maintain the balance of oxygen and carbon dioxide in the atmosphere.
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ChemistryGrade-6
