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प्रश्न
Complete the statement given below by filling in the blank with the correct word/s from the word/s given below
____________ is an example of a pollutant present in the air.
विकल्प
helium
hydrogen sulphide
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उत्तर
Hydrogen sulphide is an example of a pollutant present in the air.
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संबंधित प्रश्न
Fill in the blank:
_____________ discovered the oxygen gas.
State two similarities and two differences between respiration and burning.
How is air useful to windmills?
Name two air pollutants which affect our health.
Fill in the blank
Although we cannot see air, we can ___it.
Write ‘true’ or ‘false for the following;
Air is a compound.
Name the following.
Inert gases in the air
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.
Cool and soothing wind: Breeze.
uproot trees wind: ______.
