Environment not only provides "input" but also contains "output" to the process of production and life. Manufacturing activity is a process that starts from the use of raw materials, fuel, materials, equipment, machinery, land, material and technical base of the other, human labor to create products flower. the physical format on nothing else, which is the influential factors. Living activities, too, the people also need air to breathe, to have nowhere to live, should have the means to travel, to have a place of entertainment, learning to improve understanding ... the very weak environmental factors are "input" of the production process and the activities of human life. In other words, the environment is the "input" of production and life. However, spot-to say that the natural environment would be a disaster which caused many human (natural disaster), and this disaster will increase if people increase the destructive activity lip schools, causing a natural imbalance. In contrast to the natural environment as well as where no containers, assimilation "output" of the process waste production art and life. The production process of waste into the environment a lot of waste (both air emissions, wastewater, solid waste).
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