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प्रश्न
A fuel when used releases least amount of pollutants in the air.
पर्याय
sulphur dioxide
chlorofluorocarbon
smoke
CNG
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उत्तर
CNG
APPEARS IN
संबंधित प्रश्न
Classify Calcium oxide. Also give a balanced equation to prepare it.
State what would happen, if the air above the earth contained mainly oxygen and no nitrogen
Match the statements in List 1 with the correct answers in List 2
| List 1 | List 2 | ||
| 1 | An impurity in air | A | Water vapour |
| 2 | The component of air which supports combustion | B | Respiration |
| 3 | The inert component in the air slightly soluble in water | C | Rare gases |
| 4 | The component of air which minimizes the rate of evaporation | D | Sulphur dioxide |
| 5 | The process which involves oxidation of food substance in living organisms | E | Helium |
| 6 | The component of air which finds application in observation balloons | F | Carbon dioxide |
| 7 | The process which involves oxidation of substances, liberating heat and light energy | G | Combustion |
| 8 | The component of air which is heavier than air and fairly soluble in water | H | Nitrogen |
| 9 | The process by which atmospheric carbon dioxide is absorbed by plants resulting in the formation of carbohydrates | I | Photosynthesis |
| 10 | The component of air which is lighter than air and less than 1% in air | J | Oxygen |
Name the following:
A process which removes carbon dioxide from the air.
Nitrogen is used in the food packaging industry because it _____.
_______ and ______ are the two gases, which when taken together, make up about 99 percentage of air.
- Nitrogen
- carbon-di-oxide
- Noble gases
- Oxygen
______ gas is given to the patients having breathing problems.
______ present in the air is needed for respiration.
Observe the picture given in Fig. carefully and answer the following questions.
Why is he putting a cover on his nose?
Observe the picture given in Fig. carefully and answer the following questions.
Can you comment on the air quality of the place shown in Fig?
