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 Input:
How do you calculate the atomic mass of an element?

Ex Output:
add neutrons and electrons

Ex Input:
Carbon fixation is the first step of what cycle involving light reactions?

Ex Output:
sun cycle

Ex Input:
Some atoms are more stable when they gain or lose an electron and form what?

Ex Output:
molecules