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Question 16Fill in the blanks in the following sentences.(a) Coal is one of the ___ used to cook food.(b) When heated in air, coal burns and produces mainly ___ gas(c) Coal tar is a black, thick ___ with an ___ smell.(d) Petroleum, ___ and ___ are fossil fuels.(e) Forests and coal are ___ natural resources |
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Answer» Question 16 Fill in the blanks in the following sentences. (a) Coal is one of the (b) When heated in air, coal burns and produces mainly (c) Coal tar is a black, thick (d) Petroleum, (e) Forests and coal are |
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