Question
Fill in the blanks with suitable words :
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.
Solution
Salination, Desert, Non-biodegradable, Bio-magnification, Parthenium, Chlorofluorocarbons