Coal and Petroleum
Complete the crossword Fig....
Complete the crossword Fig. 5.2 with the help of the
8.Dead remains of sea animals got converted into it.
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The neccesary conditions for combustion process of occur are :
(A) availability of air/oxygen
(B) availability of air/oxygen and fuel
(C) temperature of fuel below ignition temperature
(D) temperature of fuel above ignition temperature
Select the correct alternatives.
Fossil fuel are obtained from:
Exhaustible natural resources are:
Which fuel used in jet crafts?
Oxygen is returned to the atmosphere mainly by :
Write down an application of Radiocarbon?
Coal is processed in industries to get some useful products.
Which of the following is not obtained from coal?
What are fossil fuels ?
Coal and petroleum are formed from the dead remains of organisms and are known as :
Fossil fuels are :
This question has multiple correct options
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