Which substance is a fossil fuel?
A) vegetable oil
B) coal
C) hydrogen gas
D) wood
Correct Answer:
Verified
Q30: Into what type of energy does the
Q31: According to scientists, how do the levels
Q32: What is the basis for fossil fuels?
A)
Q33: What unconsumed macromolecule from dead organisms eventually
Q34: How many membranes surround each chloroplast?
A) 1
B)
Q36: Which chloroplast structure increases the amount of
Q37: What relationship has been shown by the
Q38: What are the largest reservoirs of carbon
Q39: How does carbon move through the carbon
Q40: How many years ago did the plants
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