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प्रश्न
Describe a simple experiment with the help of a diagram to show that Air occupies space
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उत्तर
Air occupies space
- Press an inverted glass
- Tilt the tumbler to one side, tumbler over the water.
Observation: On tilting the tumbler, bubbles of air are seen coming out. Water slowly enters the tumbler to take place of the trapped air in the tumbler.
Conclusion: Air occupies space (the space in the tumbler was occupied by air).
संबंधित प्रश्न
Match the following :
| Column A | Column B |
| (a) Global warming | 1. Hydrated ferric oxide |
| (b) Acid rain | 2. Manganese dioxide |
| (c) Rust | 3. Carbon dioxide |
| (d) Catalyst | 4. Methane |
| (e) Photosynthesis | 5. Nitrogen Dioxide |
What do you observe when a beam of light is allowed to enter in a closed dark room through a small hole.
Give two uses of the following component present in air:
water vapour
How is air useful to water boats?
What is meant by ozone depletion?
Tick (√) the correct alternative from the choice given for the following statement.
Air pollution is due to the
Name the following.
Gases that are harmful to the ozone layer
Air has variable composition and hence there is ______ oxygen at lower altitudes than at higher altitudes.
The composition of air is always exactly the same.
Wind does not help in the movement of which of the following?
