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:
Biomass, solar, wind, water, and geothermal power are examples of what kinds of energy resources?

Ex Output:
mechanical

Ex Input:
What is the sum of the massess of the atoms in a molecule?

Ex Output:
underlying mass

Ex Input:
Heat expansion is a result of the increase of what type of energy, exhibited by molecules bumping together?

Ex Output:
light energy