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प्रश्न
What is the significance of water vapour in air?
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उत्तर
Significance of water vapour in atmosphere is as follows:
- Presence of water vapour in air determines the climatic conditions. Excessive water vapour causes rain. They also produce snow, fog, mist, hails and other phenomenon, depending upon the temperature.
- The presence of water vapour controls the rate of evaporation from the plants and animals.
- The presence of water vapour is very essential for the growth of plants.
- It is very essential for the health and comfort of animals.
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संबंधित प्रश्न
Tick (√) the most appropriate answer.
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Give reason:
Mountaineers and divers carry oxygen cylinders with them.
Complete the statement given below by filling in the blank with the correct word from the words given:
The component of air used in photosynthesis is ______ and the products of photosynthesis is oxygen.
Complete the statement given below by filling in the blank with the correct word from the words given:
The component of air which is variable in air above sea level and in air in general ______.
Give word equation for the following conversion:
Nitrogen dioxide to nitric acid
Can you guess why fire extinguishers throw a stream of carbon-di-oxide while putting - off the fire?
All living things use oxygen for breathing.
How to show the presence of carbon-di-oxide in the air?
Match the following
| 1. | Nitrogen | a. | Acid rain |
| 2. | CO2 | b. | Global warming |
| 3. | Melting of glaciers | c. | Volcanic gases |
| 4. | Corrosion of bridges | d. | Aerated drinks |
Nitrogen is about two times more soluble in water than oxygen.
