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: A moving ball that is only lightly resisted by fluid friction is likely to be quite 
 Answer: small
The faster or larger a moving object is, the greater is the fluid friction resisting its motion.

Question: Rachel was looking into the night sky. The darkest star is most likely: 
 Answer: the coldest
The hotter a main sequence star is, the brighter it is.

Question: Jeff heated the pot of boiling water. What happens to the dissolved oxygen contained within the water? 
 Answer: it 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.