Given a scientific question, generate an incorrect answer to the given question. The incorrect answer should be a plausible alternative to the correct answer. The answer should be some other item belonging to the same category as the correct answer but should be incorrect.
--------
Question: A recent deadly explosion in the gulf of mexico exemplified what source of ocean pollution?

Answer: greenhouse gases

Question: During glycolysis, each glucose molecule is broken down into two molecules of what compound?

Answer: cellulose

Question: What size of ring will a summer drought cause in a tree?

Answer:
giant