Civiles
1. What are the reasons behind the following?
(a)
Air, sunlight and water are renewable sources of energy
(b) Fossil fuels are called non-renewable sources of energy.
(c)
Peat is the first stage of coal formation.
(d) Petroleum is considered as the lifeline of modern civilization.
(e) Some substances burn with a flame.
2. Match the columns.
(a)
(b)
(c)
(d)
(e)
Column-A
Fossil fuels
Coal
Coke
Candle flame
Petroleum
(i)
(ii)
(iii)
(iv)
(v)
Column-B
Residue after dry-distillation of coal
Is typical
Non-renewable source of energy
Lifeline of modern civilization
Contains mainly carbon
Fuels, Combustion and Flar
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Im confused with this , sorry
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