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प्रश्न
Match the following.
| Nitrogen | Respiration in living animals |
| Oxygen | Fertilizer |
| Carbon dioxide | Refrigerator |
| Dry ice | Fire extinguisher |
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उत्तर
| Nitrogen | Fertilizer |
| Oxygen | Respiration in living animals |
| Carbon dioxide | Fire extinguisher |
| Dry ice | Refrigerator |
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संबंधित प्रश्न
What are the two ways in which nitrogen fixation occurs?
Complete and balance the following equation
CaO + H2O →
Fill in the blank space by choosing the correct word from the given list.
List: sulphurous, nitric acid, red lead oxide paint, oxygen, phosphoric
Sulphur dioxide gas dissolves in water to form ___________ acid.
Write down the composition of three main gases present in air by volume.
Name three different appliances where air is utilized.
Name the following:
The product formed when phosphorus burns in oxygen.
Name the following:
The main, rare (inert) gas present in air.
Explain why mountaineers carry oxygen cylinders with them?
List uses of oxygen.
The balance of oxygen in atmosphere is maintained through photosynthesis in animals and respiration in plants.
