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: When we have a few blocks we can make 
 Answer: few arrangements
A: The more carbon atoms there are, the greater the number of possible arrangements of carbon atoms.

Question: The oxygen levels in water wind up going up when the temperature 
 Answer: decreases
Warm water cant hold as much dissolved oxygen as cool water, so an increase in the temperature of water decreases the amount of oxygen it contains.

Question: Dean is trying to get a wavelength that has less energy, so Dean will have his wavelength produce waves that are 
 Answer: longer

Waves with shorter wavelengths have more energy.