Recent evidence indicates that petroleum is derived from
A) plants.
B) microscopic land animals.
C) microscopic marine animals.
D) decomposition of volcanic ash.
Correct Answer:
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Q62: To make crude petroleum more useful,it must
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Q64: The main components of petroleum are
A)hydrocarbons.
B)carbohydrates.
C)fats and
Q65: Catalytic reforming is a process for converting
A)low
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