Unit 7.4 Chemistry in Our Environment

What you need to know before you start the contents of this unit. 

This unit gives an overview of the effects of chemistry in our environment and draws upon the chemical ideas of many units of this course. It is probably best studied towards the end of the course. 

Try this test at the start of the unit. If you score more than 80%, then use this unit as a revision for yourself and scan through the text. If you score less than 80%, then work through the text and re-test yourself at the end by using this same test. 

4 Name two materials that damage the ozone layer. (2) 

6 What is the gas caused by human activity which is causing 

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