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


[Q]: Question: Dean is trying to slide a rock down a hill using less input force. The slope of the hill that will be ideal for Dean is one that has a slope that is 
 Answer: gradual
[A]: The more gradual the slope of the inclined plane, the less input force is needed and the greater the mechanical advantage.


[Q]: Question: If Mona wants to clear her farm land at a faster rate, what would adding people do to that rate? 
 Answer: increase it
[A]:
More people also means more clearing of land for agriculture and development.