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प्रश्न
Name three greenhouse gases.
उत्तर
Carbon dioxide, methane, nitrous oxide, etc.
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संबंधित प्रश्न
What do you observe when a beam of light is allowed to enter in a closed dark room through a small hole.
Name two important processes supported by oxygen present in air.
How is air useful to water boats?
While freezing, the ______ of water is lowered.
What will happen if the amount of water vapour in the air increases.
With whom should I pair up?
| Group A | Group B | ||
| 1 | Air | a | Excretion |
| 2 | Water | b | Scattering of light |
| 3 | Soil | c | Plasticity |
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 |
Draw a neat labelled diagram for the following experiment.
To determine the component of air used up in burning, by using phosphorus and a bell jar.
Draw a neat labelled diagram for the following experiment.
To prove that oxygen is non-combustible, but supports combustion.
Draw a neat labelled diagram for the following experiment.
To prepare oxygen in the laboratory from hydrogen peroxide and a catalyst.
