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प्रश्न
Complete the statement given below by filling in the blank with the correct word from the words given
___________is an example of a pollutant present in the air.
विकल्प
carbon dioxide
stratosphere
nitrogen dioxide
water vapour
hydrogen sulphide
उत्तर
Hydrogen sulphide is an example of a pollutant present in air.
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संबंधित प्रश्न
A fuel when used releases least amount of pollutants in the air.
Complete the statement given below by filling in the blank with the correct word from the words given:
The product formed which is common to both combustion and respiration is ______.
Name the following:
The main, rare (inert) gas present in air.
Name the following:
A process which removes carbon dioxide from the air.
Name the following:
The component of air which does not support combustion.
State four different properties of a compound and a mixture.
Carbon dioxide with water changes
Match the following.
| Nitrogen | Respiration in living animals |
| Oxygen | Fertilizer |
| Carbon dioxide | Refrigerator |
| Dry ice | Fire extinguisher |
A gas that neither burns nor supports burning is ______.
Boojho took an empty plastic bottle, turned it upside down, and dipped its open mouth into a bucket filled with water. He then tilted the bottle slightly and made the following observations.
(i) Bubbles of air came out from the bottle.
(ii) Some water entered the bottle.
(iii) Nitrogen gas came out in the form of bubbles and oxygen got dissolved in water.
(iv) No bubbles formed, only water entered the bottle.
Which observations is/are correct?
