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प्रश्न
Fill in the blanks :
_______ and ______ are the most common air pollutants.
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उत्तर
NO2 and CO are the most common air pollutants.
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संबंधित प्रश्न
“Air is a mixture”. Support this statement citing at least three evidences.
What do you understand by the term polluted air?
Give a reason why two different rare (inert) gases find application in advertisement signs and fluorescent bulbs.
Inhaled air contains a large amount of carbon-di-oxide.
Soda bottle bursts sometimes when it is opened during summer. Why?
What is the composition of air?
______ present in the air is needed for respiration.
Match the following
| 1. | Nitrogen | a. | Acid rain |
| 2. | CO2 | b. | Global warming |
| 3. | Melting of glaciers | c. | Volcanic gases |
| 4. | Corrosion of bridges | d. | Aerated drinks |
State whether the following statement is true or false. If false, correct them.
Air helps in the movements of sailing yachts and gliders but plays no role in the flight of birds and aeroplanes.
Write just a few sentences for an imaginary situation if any of the following gases disappear from the atmosphere.
Oxygen
