Created On: Jan 25, 2013 15:30 IST
Modified On: May 30, 2014 11:53 IST
Environmental Issues Part 2
What are the Environmental Issues? How many marks carried by the chapter Environmental Issues in class 12 board examinations? Why we study the chapter Environmental Issues? How important the chapter Environmental Issues is? What are the causes of air pollution? What are the adverse effects of ozone? What are PAN and PBN? Define the term smog and classified them in different categories? What is acid rain?