Balance Of Oxygen And Carbon Dioxide In The Air - The balance of oxygen and carbon dioxide in the atmosphere is maintained through respiration in plants and animals and by photosynthesis in plants. Plants produce oxygen during photosynthesis and utilize oxygen during respiration. They produce much more oxygen during photosynthesis than they consume.
The Oxygen Cycle: Oxygen gets removed from the air during respiration and burning. However, the percentage of oxygen in the air remains almost the same. This is because oxygen is added to air during the process of Photosynthesis. Plants use oxygen for respiration during the day as well as at night. However, during the day, the oxygen released during photosynthesis is more than the oxygen used up in respiration. Therefore, there is net release of oxygen. The natural cycle of consumption of oxygen by respiration and burning, and its release by photosynthesis is called the oxygen cycle. It is a delicately balanced process. Large scale deforestation and excessive burning of fuels can upset this balance and harm us. Hence, there is need to plant more trees and burn less fuel.
Oxygen is ______________ during the process of combustion. | |||
Right Option : B | |||
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Balance of oxygen and carbon dioxide in air is maintained by ________________________________ | |||
Right Option : C | |||
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Which of the following are correct : (a) Oxygen gets removed from the air during respiration and burning. (b) The balance of oxygen and carbon dioxide in the atmosphere is maintained through respiration in plants and animals and by photosynthesis in plants. | |||
Right Option : C | |||
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