Advertisements
Advertisements
Question
Wind does not help in the movement of which of the following?
Options
Firki
Weather cock
Ceiling fan
Sailing yacht
Advertisements
Solution
Ceiling fan
Explanation:
Wind does not help in the movement of a ceiling fan because it moves by electricity.
APPEARS IN
RELATED QUESTIONS
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 observeation balloons. | (b) Carbonic acid |
| 3. An acid formed by the dissolution of sulphur dioxide gas in water. | (c) Sulphuric acid |
| 4. An acid formed by the dissolution of carbon dioxide in water. | (d) Helium |
| 5. A gas vital for respiration. | (e) Nitrogen |
What is greenhouse effect?
Name three greenhouse gases.
Tick (√) the correct alternative from the choice given for the following statement.
Air pollution is due to the
Tick (√) the correct alternative from the choice given for the following statement.
Respiration
What will happen if the amount of water vapour in the air increases.
Fill in the blank:
A candle burns in a jar of oxygen, but gets extinguished in ______
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.
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.
In a number of musical instruments, air plays an important role. Can you name some such instruments?
