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 Input:
Question: Fred has an isotope that decays slowly. What is likely true about it? 
 Answer: it can be used to date older specimens

Ex Output:
Because these isotopes decay more slowly, they can be used to date much older specimens.


Ex Input:
Question: Yolanda looks through a miniature telescope and then compares the view to a normal sized telescope. The telescope that less likely differentiates between celestial objects the best is 
 Answer: smaller

Ex Output:
The larger a telescope's mirror or lens, the better it is at seeing narrowly separated objects as individual objects and the sharper the images look.


Ex Input:
Question: If Mona is bouncing radar waves off a test car when training to be a policewoman and she notices the frequency of the waves returning to her radar gun is higher then it was before, what is happening to the car she is pointing the gun at? 
 Answer: increasing in speed

Ex Output:

A: As the car approaches the radar gun, the reflected microwaves get bunched up in front of the car. Therefore, the waves the receiver detects have a higher frequency than they would if they were being reflected from a stationary object. The faster the car is moving, the greater the increase in the frequency of the waves.