Question 741
Fine organic or inorganic particles suspended in air is called?
Question 742
All are particulate pollutants except?
Question 743
Air pollution is severe in?
Question 744
Pollutants that are introduced into the environment by human
activity are called as?
Question 745
All are primary pollutants except?
Question 746
All are physical pollutants except?
Question 747
Earth summit was held in?
Question 748
The occurrence of pesticides like DDT in higher trophic levels is
termed as?
Question 749
Acid rain contains?
Question 750
Lead poisoning?