Sunday, April 12, 2009

Effects of land pollution

* Infects our water supply* kills wild life* acid rain kills crops, trees and other plants.* not enough room to replant forests.* harmful biological effects on human health and on the food chain of animals, birds, and marine life.* Destruction of vegetation that provides food and shelter.* It can seriously disrupt the balance of nature, and, in extreme cases, can cause human deaths.* Pesticides, which include herbicides and insecticides, can damage crops; kill vegetation; and poison birds, animals, and fish. Most pesticides are nonselective; they kill or damage life forms other than those intended. For example, pesticides used in an effort to control or destroy undesirable vegetation and insects often destroy birds and small animals. Some life forms develop immunity to pesticides used to destroy them. When that happens, we develop more potent chemicals and the cycle repeats itself.

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