About Pollution
The human has always thought that navy, army, air forces are inexhaustible on Earth, therefore,they ever did not care about delivers the thousands of ton waste gas to sky, also pours the number of hundred million ton trash into the sea. Everybody thought that the world is such big, it is no need to calculate such few waste to the point? Actually,we make a mistake, although the Earth is big (radius more than 6300 kilometers), but the biology can only live in scopes from 8 to 11 kilomete seabed elevationr, even occupied 95% living creatures only to be able to survive among the approximately 3 kilometers scopes, but the human contaminated this limited living conditions unexpectedly recklessly from three aspects: Marine Pollution,continent Pollution and Air pollution.