Question

II. Fill in the blanks. 1. Producer gas is a mixture of and is known as marsh gas. 2. 3. The term petroleum means 4. Heating coal in the absence of air is called 5. An example for fossil fuel is​

Answer 1

1 Marsh gas is also called swamp gas and is a mixture of hydrogen sulphide, carbon dioxide and methane and it is produced by anaerobic bacterial decomposition of vegetables and other is produced naturally in swamps and marshes.

2 petroleum

3 Heating coal in the absence of air is called destructive distillation of coal.

4 Coal, oil, and natural gas are examples of fossil fuels.

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