The answer is: [A]: crater .
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Note: Vents and fissures occur on the sides and flanks of a volcano—NOT the top.
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F the instructor gives you 5 functions of the liver during a lecture, go out and try to find information about more functions (that the instructor didn't mention or perhaps doesn't know). In the end, you may add two more functions of the liver and in the process remember all of them better.
pov: you are cheating in iip exam