Advertisements
Advertisements
प्रश्न
Name two air pollutants which cause acid rain.
Advertisements
उत्तर
Two air pollutants that cause acid rain are:
- SULPHUR DIOXIDE (SO2) and
- NITROGEN DIOXIDE (NO2)
APPEARS IN
संबंधित प्रश्न
State four steps to be taken to control air pollution.
Give a brief account of the discovery of air and the scientists involved.
Describe a simple experiment with the help of a diagram to show that Air occupies space
Answer in your own words.
What are the various constituents of air? Write their uses.
______ soil has pH 7.
State the meaning of the term Air
Explain the term ‘air pollution’, with reference to air quality. State the sources of a few main pollutants.
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 |
In a number of musical instruments, air plays an important role. Can you name some such instruments?
Paheli kept some water in a beaker for heating. She observed that tiny bubbles appeared before the water started to boil. She boiled the water for about 5 minutes and filled it in a bottle up to the brim and kept the bottle air tight till it cooled down to room temperature.
Why did the tiny bubbles appeared?
