In this task, you are given a question and answer for that. The answer will fill in the blank or will complete the unfinished question. Your task is to provide an explanation based on the given question or fill-in-the-blank statement, and answer.

Question: Dana washes her hands a lot, so her bacteria has mutated to help to resist antibiotics. As that bacteria decreases in numbers, the mutation becomes 
 Answer: rare
Bacteria with a mutation the helps resist antibiotics increase in numbers, so the mutation becomes more common.

Question: A light with a very long wavelength has 
 Answer: low energy
The higher the frequency is, the more energy a photon has.

Question: Dave dropped a feather and a ball out of a window. The ball landed first because it had mass that, compared to the feather, was 
 Answer: greater

The greater the objects mass, the greater the force of attraction; in addition, the greater the distance between objects, the smaller the force of attraction.