Tuesday, October 09, 2007

"Pollution"

Our friend PAULA CERQUEIRA, from the 8th grade, class G, wrote this essay about pollution. In some way, it has something to do with the themes we have been discussing in class.


Good work Paula!



"POLLUTION"



"What is pollution?


Pollution is the introduction of pollutants into the environment which results in deleterious effects of such a nature as to endanger human health, harm living resources and ecosystems.


What are the major forms of pollution?



There are 3 major forms of pollution: air pollution, water pollution and noise pollution.


Air pollution: a biological agent that modifies the natural characteristics of the atmosphere. The greatest source of air pollution is actually mobile sources.


Water pollution: a large set of adverse effects upon water bodies such as lakes, rivers, oceans, and groundwater caused by human activities. Some water pollutants are insecticides, chemical waste and fertilizers.


Noise pollution: is displeasing human or machine created sound that disrupts the environment. The dominant form of noise pollution is from transportation sources, mainly motor vehicles.


How can we stop pollution?

To stop pollution we must recycle, reuse, use the natural resources in conscientious way, preserve green spaces and install devices in factories
that hold back the smokes and the gases."

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