1) As a result of human activities, mostly
2) impurities or contaminants in the environment, both in terms of matter and energy,
3) have enough volume to cause harm to human health
or anything. other organisms in the ecosystem
4) pollution will continue to follow the path of pollutants from the source through
various environmental Until humans or creatures in the ecosystem
5) the size or scale of the problem will depend on the results. the various target groups, including human resources or ecology.
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