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.

[EX Q]: Question: If Mona is creating a reaction using solid reactants and she decreases the surface area of those reactants, what happens to the reaction rate? 
 Answer: decreases
[EX A]: Therefore, increasing the surface area of solid reactants increases the reaction rate.

[EX Q]: Question: When there are low levels of gluons in quarks it becomes 
 Answer: weaker
[EX A]: Gluons make quarks attract each other more strongly the farther apart the quarks get.

[EX Q]: Question: Keely had just run a mile and was now running faster to _____ _____. 
 Answer: warm up
[EX A]:
When particles move more slowly, temperature is lower and an object feels cooler.