What is Acid rain ? What are its harmful effects ?

What is acid rain? What are its effects on plants?

What are the harmful effects of ethanol?

What causes acid rain ?

What is photochemical smog and what are its harmful effects?

Briefly discuss acid rain and its harmful effects.

Name any one green house gas and its possible source of production on a large scale . What are the harmful effects of it ?

What is greenhouse effect? What are its effects ?