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प्रश्न
Nitrogen is _______ than air.
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उत्तर
Nitrogen is lighter than air.
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संबंधित प्रश्न
What are the main components of air?
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Oxygen is used in ___________the food to get _______.
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Aquatic plants and animals use _________ in water.
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Match the statements in List 1 with the correct answers in List 2
| List 1 | List 2 | ||
| 1 | An impurity in air | A | Water vapour |
| 2 | The component of air which supports combustion | B | Respiration |
| 3 | The inert component in the air slightly soluble in water | C | Rare gases |
| 4 | The component of air which minimizes the rate of evaporation | D | Sulphur dioxide |
| 5 | The process which involves oxidation of food substance in living organisms | E | Helium |
| 6 | The component of air which finds application in observation balloons | F | Carbon dioxide |
| 7 | The process which involves oxidation of substances, liberating heat and light energy | G | Combustion |
| 8 | The component of air which is heavier than air and fairly soluble in water | H | Nitrogen |
| 9 | The process by which atmospheric carbon dioxide is absorbed by plants resulting in the formation of carbohydrates | I | Photosynthesis |
| 10 | The component of air which is lighter than air and less than 1% in air | J | Oxygen |
List out the uses of carbon dioxide.
______ gas cylinders are used for breathing purpose for a diver going deep into the sea.
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Give the components present in the air with a percentage?
