Summary

This document appears to be educational material, possibly notes or a chapter from a chemistry textbook. It covers various topics like medicine, cleaning, and environmental issues in chemistry.

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 ® (v) Medicine: THE SPOT LIGHT (vi) Cleaning: (vii) Environmental issues BUILDING CONCEPTS 1.2 Explanation CHECK YOUR ANSWERS 1.1 1.4 Notable personalities 

 ® (v) Medicine: THE SPOT LIGHT (vi) Cleaning: (vii) Environmental issues BUILDING CONCEPTS 1.2 Explanation CHECK YOUR ANSWERS 1.1 1.4 Notable personalities 

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