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प्रश्न
Match the following
| 1. | Moving Air | Photosynthesis |
| 2. | Layer in which we live | Troposphere |
| 3. | Stratosphere | Wind |
| 4. | Oxygen | Ozone layer |
| 5. | carbon-di-oxide | Combustion |
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उत्तर
| 1. | Moving Air | Wind |
| 2. | Layer in which we live | Troposphere |
| 3. | Stratosphere | Ozone layer |
| 4. | Oxygen | Combustion |
| 5. | carbon-di-oxide | Photosynthesis |
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संबंधित प्रश्न
Answer the question put against the following constituents of air :
Carbon dioxide : “Although carbon dioxide plays no role in respiration, all life would come to an end if there is no carbon dioxide in air.” Support this statement with relevant facts.
Suggest five measures to prevent air pollution.
State a reason why there is a balance in the amount of carbon dioxide in the air, even though carbon dioxide is released into the atmopshere by various processes.
What is the percentage of oxygen in air?
What is the composition of air?
How will you show that air is dissolved in water?
Which gas is essential for burning?
Give the components present in the air with a percentage?
______ exists in nature as silicates, carbonates, oxides, and water. It also exists in a free state as part of the air in the atmosphere.
On a Sunday morning Paheli’s friend visited her home. She wanted to see some flowering plants in the nearby garden. Both of them went to the garden. While returning from the garden they also observed some flowering plants on the road side. But to their surprise they found that the leaves and flowers of these roadside plants were comparatively very dull. Can you help them to know why?
