Air Pollution / Presentations / ID: 307574

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ID number:307574

Author: Anonymous author (2)

Evaluation:

Published: 31.05.2012.

Language: English

Level: Elementary school

Literature: n/a

References: Not used

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Extract

Air supplies us with oxygen which is essential for our bodies to live. Air is 99.9% nitrogen, oxygen, water vapor and inert gases. Human activities can release substances into the air, some of which can cause problems for humans, plants, and animals.

Smog is a type of large-scale outdoor pollution. It is caused by chemical reactions between pollutants derived from different sources, primarily automobile exhaust and industrial emissions.…

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