Chemical Pollutants
Chemical Pollutants
Pollutants : A pollutant is a substance or energy introduced into the environment that has undesired effects, or adversely affects the usefulness of a resource.
Some chemical pollutants are :
Chlorofluorocarbons (CFCs) : Chlorofluorocarbons are the compounds containing carbon, chlorine and fluorine. These compounds are used as an insulating material in air conditioners and refrigerators. Chlorofluorocarbons are also used in shaving foam and cleaning agent. These chemical compounds (CFCs) react with the ozone gas and leads to the depletion of the ozone layer and formation of holes in it.
Lead : When petrol is burnt in automobiles it releases lead as a pollutant which is absorbed by our body. It is poisonous and can damage our brain, liver and kidneys.
Ground level Ozone : Ozone damages vegetation and ecosystem by inhibiting the ability of plants to open the microscopic pores on their leaves to breathe. It interferes the process of photosynthesis by reducing the amount of carbon dioxide the plants can process and release as oxygen.
___________ can end up in water and soils through corrosion of leaded pipelines in a water transporting system. | |||
| Right Option : A | |||
| View Explanation | |||
Which of the following pollutant is poisonous and can damage our brain, liver and kidney ? | |||
| Right Option : B | |||
| View Explanation | |||
Which of the following are correct ? (a) A pollutant is a substance or energy introduced into the environment that has undesired effects, or adversely affects the usefulness of a resource. (b) Chlorofluorocarbons are the compounds containing carbon, chlorine and fluorine. (c) Ozone damages vegetation and ecosystem by inhibiting the ability of plants to open the microscopic pores on their leaves to breathe. | |||
| Right Option : D | |||
| View Explanation | |||
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Archit Segal
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Shivam Rana
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8thIt was a good experience with Abhyas Academy. I even faced problems in starting but slowly and steadily overcomed. Especially reasoning classes helped me a lot.
Cheshta
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8thOne of the best institutes to develope a child interest in studies.Provides SST and English knowledge also unlike other institutes. Teachers are co operative and friendly online tests andPPT develope practical knowledge also.
