Question

E. Fill in the blanks:
1. A fuel is a substance that can be used to produce heat at a_cost.
2. A fuel has very_
ignition temperature is dangerous to store.
3. A good fuel should burn at a_rate and its combustion should be _
4. Fossil fuels are non-renewable because they take_years to form
5. The outermost zone of the candle flame is called_
zone.
6. Gobar gas is produced by_
of cow dung by anaerobic bacteria present in cow dung.
7. A better fuel leaves_
residue after combustion.
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Answer 1

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HEY FRIEND,

HERE IS YOUR ANSWER >>>>

1. low
2. low
3. fast, complete
4. many
5. luminous zone
6. decomposition
7. no

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