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प्रश्न
Tick (√) the correct alternative from the choice given for the following statement.
Photosynthesis is a process in which plants
पर्याय
take in oxygen and give out carbon dioxide
take in carbon dioxide and give out oxygen
take in nitrogen and give out oxygen
none of the above
उत्तर
take in carbon dioxide and give out oxygen
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संबंधित प्रश्न
What was the ancient belief regarding the nature of matter ?
What do you observe when a beam of light is allowed to enter in a closed dark room through a small hole.
Fill in the blank
Air is a ______ of gases
State what do you understand by the term ‘air’. Explain its importance to mankind.
Describe a simple experiment with the help of a diagram to show that Air has mass
Answer in your own words.
What are the various constituents of air? Write their uses.
State the meaning of the term atmosphere.
Match the statements in List I with the correct answer from List II.
| List I | List II |
| 1. The constituent of air which is around 0.02% | A: Nitrogen |
| 2. The constituent of air which is inert or unreactive | B: Oxygen |
| 3. The constituent of air which is non-combustible, but supports combustion. |
C: Sulphur dioxide |
| 4. A pollutant in air responsible for acid rain | D: Carbon dioxide |
| 5. The main rare gas present in air. | E: Argon |
The process of conversion of iron into hydrated form of oxides is called _______.
Air has no ______ & ______.
