4. a) State the scientific principle involved in each of the following local industries:
i. kenkey production ii. soap production iii. salt production iv. vegetable crop production v. gari processing
(5marks)
b) i. What is an alloy?
ii. Name the main elements present in each of the following alloys:
(a) Nichrome (B) Duralumin (y) Bronze
(5marks).
Answer (2)
The answer discusses the scientific principles related to local industries such as fermentation for kenkey and soap production, evaporation for salt production, photosynthesis in vegetable crop production, and the processes in gari processing. It defines alloys as mixtures of metals and lists the main elements in Nichrome, Duralumin, and Bronze. Understanding these concepts offers insights into both industrial processes and metallurgy.
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The answer discusses the scientific principles behind local industries such as kenkey and soap production, highlighting fermentation and saponification. Additionally, it defines alloys and lists their main elements, including Nichrome, Duralumin, and Bronze. This overview provides a comprehensive look at key processes in industry and metallurgy. ;
