The first of the fossil fuels to be widely used was
A) Coal.
B) Oil.
C) Natural gas.
D) Tar sand.
Correct Answer:
Verified
Q15: Coal is formed from
A) The remains of
Q16: At present,most of the energy used in
Q17: The two principal sources of artificial oil
Q18: Under suitable conditions,the first combustible product in
Q19: Which of the following techniques for cleaning
Q21: Concern about exploiting these is that disturbing
Q22: The process of gasification
A) Extracts geopressurized natural
Q23: Deep,hot pore waters containing geopressurized natural gas
Q24: A recent evidence regarding one of the
Q25: As sediments rich in marine microorganisms undergo
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