TASK DEFINITION: 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.
PROBLEM: Question: Jeff is stopping exercising his muscles at home. Over time his muscles will grow 
 Answer: smaller

SOLUTION: Muscles that are exercised are bigger and stronger than muscles that are not exercised.

PROBLEM: Question: Given two equal measures of water by volume, which would be lighter 
 Answer: distilled water?

SOLUTION: Water becomes more dense when it is colder and when it has more salt.

PROBLEM: Question: Tommy traded in his four-cylinder Pinto for an eight-cylinder Mustang. The Pinto engine was 
 Answer: less powerful.

SOLUTION:
The more cylinders a car engine has, the more powerful its engine can be.