Q41. What is Ganga Action Plan? When was it launched? What was its purpose?

 

Q42. Prepare a brief speech on global warming that you have to make in your class.

 

Q43. What are the harmful effects of water pollution?

 

Q44. What are the main sources of air pollution?

Or

How does air get polluted?

 

Last modified: Thursday, 24 October 2019, 9:44 AM