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.

Example Input: Question: By removing a pound of salt from a bucket of fresh water, could you cause the density of the water to 
 Answer: decrease?
Example Output: Water density increases as salinity and pressure increase, or as temperature decreases.

Example Input: Question: If Milo decreases the frequency on his shortwave radio, it does what to the amount of energy the radio is producing? 
 Answer: decreases
Example Output: Shorter wavelengths (higher frequencies) correspond to higher energies and thus hotter star temperatures.

Example Input: Question: Suppose that Mary hasn't started smoking yet. If you measured the oxygen levels in her blood now and compared them to oxygen levels after she's been smoking for 20 years, what would you find? 
 Answer: more oxygen in her blood now
Example Output:
Smoking reduces the amount of oxygen available for diffusion at the lungs, so less oxygen gets absorbed and blood is oxygenated to a lesser degree.