Environment Pollution and Pollutants
Environment Pollution and Pollutants: Overview
This topic discusses the concept of environmental pollution. It tells the source of pollutants and the harm caused by them to the living organisms and non-living things.
Important Questions on Environment Pollution and Pollutants
Which one of the following statement pertaining to pollutants is correct?
Which of the following is a biodegradable pollutant?
What are biodegradable pollutants?
Can biodegradable pollutants cause environmental problems? Explain your answer.
Which among the following is a non biodegradable substance?
Which are non-biodegradable pollutants? Give examples.
Which of the following is the coldest region?
Domestic waste will lead to -
Which of the following is a biodegradable pesticide?
The following table summarises the differences between biodegradable and non-biodegradable pollutants. Pick out the wrong differences and select the correct answer.
| Biodegradable pollutants | Non-Biodegradable pollutants | |
|---|---|---|
| (i) | These are the pollutants which can be easily degraded by microorganisms | These are pollutants which cannot be degraded into harmless materials |
| (ii) | These can be used to produce energy (through biogas) compost, manure, etc. | These are difficult to manage as a natural method of degradation is absent |
| (iii) | These usually do not enter biogeochemical cycles | These become a part of rapid turnover in biogeochemical cycles |
| (iv) | Examples: DDT, BHC, plastics, polyethylene, glass, etc. | Examples: Sewage, garbage, animal waste, etc. |
Domestic waste mostly constitutes
