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प्रश्न
State what would happen, if the air above the earth contained mainly oxygen and no nitrogen
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उत्तर
Nitrogen is utilised by plants for their growth and development. Free nitrogen of the air is converted to nitrogen compounds which are absorbed by the plants and converted to plant proteins. In the absence of nitrogen no plants will be survived on the earth.
संबंधित प्रश्न
Give a reason why nitrogen is filled in food packets and not oxygen.
Give a reason why two different rare (inert) gases find application in advertisement signs and fluorescent bulbs.
Complete the statement given below by filling in the blank with the correct word from the words given:
The product formed which is common to both combustion and respiration is ______.
What are the components of air?
List out the uses of carbon dioxide.
_____ gas turns lime water milky.
How do the roots of land plants get oxygen for breathing?
Match the following.
| Nitrogen | Respiration in living animals |
| Oxygen | Fertilizer |
| Carbon dioxide | Refrigerator |
| Dry ice | Fire extinguisher |
Assertion: Carbon dioxide occurs as carbonates in nature.
Reason: Carbon dioxide can exist as a liquid at atmospheric pressure.
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?
