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प्रश्न
Tick (√) the correct alternative from the choice given for the following statement.
Respiration
पर्याय
is a slow process
is a natural and continuous process
takes place at body temperature
all of the above
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उत्तर
all of the above
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संबंधित प्रश्न
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 |
Write the chemical name of Lime water
Name two important processes supported by oxygen present in air.
How is air useful to agriculture?
Name two air pollutants which affect our health.
Fill in the blank
Polluted air is harmful to ____.
Tick (√) the correct alternative from the choice given for the following statement.
The gases which cause acid rain are
State what do you understand by the term ‘air’. Explain its importance to mankind.
What is the importance of air in transmission of sound?
Fill in the blank:
Nitrogen of the air is utilized by plants for formation of _____.
