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: If you are able to remove greenhouse gases the temperature will 
 Answer: go down
[A]: A decrease in greenhouse gas levels decreases global temperature and an increase raises global temperature.


[Q]: Question: When Derek was in the hospital, his blood vessels had a larger diameter than normal, which meant that his body was running 
 Answer: warmer
[A]: Increasing the diameter of the blood vessels increases the amount of blood and heat that moves near the skins surface.


[Q]: Question: If Jimbo takes a sander to his board and makes it rougher, what will happen to the friction of the board? 
 Answer: increases
[A]:
The smoother the surface, the less friction against an object, so the faster it will move.