It was thought that the water on the earth， the air is endless， so don't worry about the gas to the sky， and ten hundreds of millions of tons and the rubbish into lakes and Everybody believes that the world is so big， it wastes? We were wrong， actually earth though large (radius 6300 much kilometers)， but only 8 km creatures in elevation to the bottom of the 11 km within the scope of the life， and occupied 95% of the creature can only live in the middle about three kilometres， within the scope of the people unexpectedly wantonly from three aspects to make unclean this limited living Land pollution， waste cleanup become the important problem of cities every million tons of garbage， many are not incineration or corrupted， such as plastic， rubber， glass， Human is the first Marine pollution: mainly from oil and oil leak of crude， farmland use of pesticides and fertilizers， factories， mines of sewage discharge flow of acidic solution， They make most of the Marine lakes are contaminated， results not only Marine creatures suffer， birds and humans may also is due to eat these biological Air pollution: this is the most direct and serious， mainly from factories， automobile， power stations and so on the recombination of carbon monoxide and hydrogen sulphide， every day there are from exposure to these dirty air by respiratory organs or visual organs If we still ignore experts warned， will have a fall without half inches pureland can live Water pollution refers to water bodies of any substance， which leads to the chemical， physical， biological or radioactive pollution and so on aspect characteristic changes， thus affecting the effective use of water， endangering human health or destruction of ecological environment， causing water quality deterioration Atmospheric pollution means air pollutant concentration reach or exceed the degree of harmful， causing damage the ecological system and the normal human survival and development to human and biological Noise pollution means generated by the environmental noise emitted exceeds the state on emission of environmental noise， and disturb others normal work， study and life Radioactive pollution means caused by human activities material， human body， site and environment medium surface or internal appear more than national standards of radioactive substances or For example， more than state and local government rules and standards of the discharge of pollutants， super species， excess， super concentration the discharge of pollutants， Do not take measures to prevent the overflow and leakage and load transport oil or toxic goods cause goods falling water pollution; Illegal released into the atmosphere with toxic or harmful substances， causing the atmospheric pollution accident，
