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Question 10Fill in the blanks: Producer gas is a mixture of ………….. ………….. is known as marsh gas. The term petroleum means ………….. Heating coal in the absence of air is called …………… An example for fossil fuel is …………..

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Question 10



Fill in the blanks:







  1. Producer gas is a mixture of …………..




  2. ………….. is known as marsh gas.




  3. The term petroleum means …………..




  4. Heating coal in the absence of air is called ……………




  5. An example for fossil fuel is …………..







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