Coal is formed from
A) The remains of land plants.
B) Graphite under high pressure.
C) The remains of marine microorganisms.
D) Heavy oils like asphalt.
Correct Answer:
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Q10: Most oil and natural gas is found
Q11: The United States presently
A) Is self sufficient
Q12: Which of the following is estimated to
Q13: Formation of coal also results in the
Q14: Petroleum consists of a variety of liquid
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
Q20: The first of the fossil fuels to
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