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1) How have fossil fuels been formed ? 2) Why are fossil fuels non-renewable sources of energy ? 3) Why is smelling agent added to LPG ? 4) Give one reason why LPG is a better fuel than coal. 5) Give one advantage of modem chullah over traditional chullah.

1) How have fossil fuels been formed ?
2) Why are fossil fuels non-renewable sources of energy ?
3) Why is smelling agent added to LPG ?
4) Give one reason why LPG is a better fuel than coal.
5) Give one advantage of modem chullah over traditional chullah.

Grade:12th pass

1 Answers

Pawan Prajapati
askIITians Faculty 60787 Points
3 years ago
1) They have been formed by decomposition of pre-historic plants and animals buried under the Earth’s crust millions of years ago. 2) Fossil fuels are non-renewable sources of energy because once exhausted they cannot be re-created in a short period of time. 3) Smelling agent is added to LPG to detect the leakage of gas as LPG is colourless and odourless gas. 4) LPG is a better fuel than coal because : -It does not cause pollution. -It has high calorific value. -It has low ignition temperature. (Any one) 5) Advantages of Modem Chullah over Traditional Chullah : -High efficiency. -Causes less pollution. -Consumes less fuel.

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