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: Rich sees a blue star with his telescope. Tina sees a red star with his telescope. _____ sees the cooler star. 
 Answer: Tina
But, in stars, the bluer the star, the hotter it is, and the redder it is, the older and colder it is.

Question: Quent increases the energy of a liquid. He notices that the particles in the liquid 
 Answer: speed up
As the liquid particles lose energy, their movement slows down even more. As their movements become slower and slower, the attractive forces between become stronger.

Question: Mona lives in a nation that doesn't use a lot of fossil fuels. What would happen to her countries levels of air pollution if they were to increase their usage? 
 Answer: increase

Because richer nations use more fossil fuels, they also cause more air pollution and global warming than poorer nations do.