Advertisements
Advertisements
Question
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 observation balloons. | (b) carbon acid |
| 3. An acid formed by the dissolution of sulphur dioxide gas in water. | (c) Sulphur acid |
| 4. An acid formed by the dissolution of carbon dioxide in water. | (d) Helium |
| 5. A gas vital for respiration. | (e) Nitrogen |
Advertisements
Solution
| Column A | Column B |
| 1. Largest Constituent of air, which dilutes the activity of oxygen. | (e) Nitrogen |
| 2. A gas used for filling weather observation balloons. | (d) Helium |
| 3. An acid formed by the dissolution of sulphur dioxide gas in water. | (c) Sulphur acid |
| 4. An acid formed by the dissolution of carbon dioxide in water. | (b) carbon acid |
| 5. A gas vital for respiration. | (a) Oxygen |
APPEARS IN
RELATED QUESTIONS
Match the following :
| Column A | Column B |
| (a) Global warming | 1. Hydrated ferric oxide |
| (b) Acid rain | 2. Manganese dioxide |
| (c) Rust | 3. Carbon dioxide |
| (d) Catalyst | 4. Methane |
| (e) Photosynthesis | 5. Nitrogen Dioxide |
Define rusting?
Tick (√) the correct alternative from the choice given for the following statement.
Photosynthesis is a process in which plants
Tick (√) the correct alternative from the choice given for the following statement.
Fuels which do not leave any residue on burning are
State what do you understand by the term ‘air’. Explain its importance to mankind.
Name the following.
Gases that are harmful to the ozone layer
State the meaning of the term atmosphere.
List five activities that are possible due to the presence of air.
______ is important for all living creatures.
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.
