Advertisements
Advertisements
प्रश्न
Wind does not help in the movement of which of the following?
विकल्प
Firki
Weather cock
Ceiling fan
Sailing yacht
Advertisements
उत्तर
Ceiling fan
Explanation:
Wind does not help in the movement of a ceiling fan because it moves by electricity.
APPEARS IN
संबंधित प्रश्न
Define the following:
Respiration
Name two air pollutants which affect our health.
State four steps to be taken to control air pollution.
With whom should I pair up?
| Group A | Group B | ||
| (1) | Air | (a) | Excretion |
| (2) | Water | (b) | Scattering of light |
| (3) | Soil | (c) | Plasticity |
State the meaning of the term atmosphere.
Name the important scientists and their studies which led to the discovery of the components of 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 |
What should be done if the clothes of a person catch fire accidentally? Why?
The process of conversion of iron into hydrated form of oxides is called _______.
Cool and soothing wind: Breeze.
uproot trees wind: ______.
