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प्रश्न
Make sentences using the given set of words.
Air, wind, motion, called
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उत्तर
Air in motion is called wind.
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संबंधित प्रश्न
Match the statements in Column A, with those in Column B.
| Column A | Column B |
| 1. Largest Constituent of air, which dilutes the activity of oxygen. |
(a) Oxygen |
| 2. A gas used for filling weather observation balloons. | (b) carbon acid |
| 3. An acid formed by the dissolution of sulphur dioxide gas in water. | (c) Sulphur acid |
| 4. An acid formed by the dissolution of carbon dioxide in water. | (d) Helium |
| 5. A gas vital for respiration. | (e) Nitrogen |
What do you observe when a burning candle is covered with an inverted jar.
Give two uses of the following component present in air:
oxygen
Name the processes which maintain the balance between oxygen and carbon dioxide in the air. How is it done?
How is air useful to scooters and cars.?
Tick (√) the correct alternative from the choice given for the following statement.
Which of the following is not a greenhouse gas?
Name the following.
Inert gases in the air
Fill in the blank:
The gas evolved as a product of combustion as well as respiration is ______.
Draw a neat labelled diagram for the following experiment.
To study the presence of carbon dioxide in air.
Take a squeezable bottle. Make a hole on the lid and close the bottle tightly. Bring the bottle near your face and press the bottle. What do you feel?
