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.

[Q]: Question: Carter puts two rocks outside; one is a soft pebble, the other is a solid stone. A year later, he checks on the rocks. The solid stone is still there because it has a resistance that is 
 Answer: greater
[A]: Different types of rocks weather at different rates. More resistant types of rocks will remain longer.


[Q]: Question: If Milo starts rubbing two surfaces together quickly and then decrease the speed, what happens to the amount of energy produced? 
 Answer: decreases
[A]: Friction causes the molecules on rubbing surfaces to move faster, so they have more energy. This gives them a higher temperature, and they feel warmer.


[Q]: Question: Chris was looking at some stars through a very large telescope. He noticed two stars. The first was a dull blue. The second was a darker blue. Compared to the duller star, the star that is bluer would be 
 Answer: hotter?
[A]:
But, in stars, the bluer the star, the hotter it is, and the redder it is, the older and colder it is.