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.

[EX Q]: Proteins are one of four classes of what type of compounds?
[EX A]: hormonal

[EX Q]: What is the term for how the air feels at its temperature and humidity
[EX A]: climate sensory index

[EX Q]: What forms when there is a difference in temperature between the land and the air?
[EX A]:
smoke