Advertisements
Advertisements
प्रश्न
Mention five causes of air pollution.
Advertisements
उत्तर
CAUSES OF AIR POLLUTION ARE:
- Burning of FOSSIL FUELS and FIBRES.
- Cutting of forests.
- An eruption of volcanoes.
- Increase in POPULATION.
- Agricultural activities like the use of chemical fertilisers, insecticides, pesticides, and burning of husks, etc.
APPEARS IN
संबंधित प्रश्न
How is air useful to scooters and cars.?
The capacity of air to hold moisture depends upon the ______ of the air.
______ soil has pH 7.
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.
The process of conversion of iron into hydrated form of oxides is called _______.
Air has no ______ & ______.
Wind does not help in the movement of which of the following?
In a number of musical instruments, air plays an important role. Can you name some such instruments?
A list of words is given in a box. Use appropriate words to fill up the blank in the following statement.
The ______ makes the windmill rotate.
