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Percival, Carl; Burke, Rhodelle – School Science Review, 2011
Chemicals entering the atmosphere come from a number of sources but, in broad terms, are either from human activity or from the biosphere (natural systems). What happens to these chemicals once in the atmosphere is very important, of course. If they are toxic they can impact on the health of humans, animals and natural ecosystems. Therefore, it is…
Descriptors: Investigations, Ecology, Organic Chemistry, Science Education