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प्रश्न
The component of air used by green plants to make their food, is ______.
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उत्तर
The component of air used by green plants to make their food, is carbon dioxide.
संबंधित प्रश्न
Statement given below is incorrect. Write the correct statement :
Carbon dioxide gas allows the earth to radiate out heat rapidly.
Statement given below is incorrect. Write the correct statement :
During thunder and lightning, nitrogen and oxygen combine to form nitrogen dioxide gas.
What happens when Carbon burns in oxygen ? Also give the balanced chemical equation for the reaction.
Classify Water. Also give a balanced equation to prepare it.
Tick (√ ) the most appropriate answer.
Magnesium burns with a dazzling white flame to form magnesium oxide, a powdery mass. The colour of magnesium oxide is :
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 |
What was the old name of nitrogen?
The amount of water vapour in the air is more in windy places than in other areas.
Venus's atmosphere consists of roughly 96 – 97% of ______.
______ exists in nature as silicates, carbonates, oxides, and water. It also exists in a free state as part of the air in the atmosphere.
