Location Of Tornado Alley

Tornado Alley is an informal expression frequently used in relation to the vicinity of the United States wherein tornadoes occur very commonly. Though its official position is not definite, but it is believed to be amid the Rocky Mountains and Appalachian Mountains.

Prevention And Air Pollution

Prevention is better than cure is an old saying. It is very true from all aspects, and it applies also to air pollution. Prevention of air pollution has become a global concern now with all countries participating in the efforts to control this kind of pollution. The United States especially has taken a very active approach towards making efforts to control air pollution.