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Environmental Issues
Which of the following in sewage treatment remove suspended solids?
Tertiary treatment
Secondary treatment
Primary treatment
Sludge treatment
C.
Primary treatment
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1. Increase in concentration of soluble salts in the soil is called.........
2. Aforestation can check the advancement of......... .
3. DDT is a serious pollutant as it is a.........pollutant and undergoes......... .
4 .........plant has become a troublesome weed in agricultural fields.
5 .........are major aerosol pollutant present in jet aircraft emission.
Discarded computer parts like monitors, key boards, mouse etc.
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