E. Give reasons for the following.
1. The need for the different branches of Chemistry.
2. Chemical compounds obtained from microbes are used in medical field.
3. Fertilisers are added to soil.
4. Chemicals are used for carrying painless surgical operations.
5. Science is a subject of practical activity.
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The three-sector model in economics divides economies into three sectors of activity: extraction of raw materials (primary), manufacturing (secondary), and service industries which exist to facilitate the transport, distribution and sale of goods produced in the secondary sector (tertiary).
Answered by :- @BrainlyParrot
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