Which gas is the major cause of the greenhouse effect?

Ozone layer is present in which part of the atmosphere?

Acid rain is caused mainly due to the presence of which gases?

What is the full form of BOD in water pollution?

What is the major pollutant emitted from automobile exhaust?

Which metal causes Itai-Itai disease?

What is the primary source of indoor air pollution?

Green chemistry is also known as:

Which water pollutant causes "Blue Baby Syndrome"?

What protects Earth from harmful UV rays?