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WAEC SSCE - Geography - 1988 (Objective)

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All of the following can be made from the by -products of crude oil except
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The by-products of crude oil can be used to make a wide range of products such as plastics, synthetic rubber, detergents, and insecticides, among others. However, glass is not made from crude oil by-products. Glass is made from natural materials such as silica, which is found in sand, quartz, and other minerals. The process of making glass involves melting these materials at high temperatures, then cooling and shaping them into the desired form. Although crude oil is an important source of energy and raw materials for many industries, it is not used in the production of glass.
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