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.

Example Input: Question: Eric hears a sound from far away. If this is the first sound he heard, this sound is likely 
 Answer: strong
Example Output: The farther the sound waves travel away from the source, the more spread out their energy becomes.

Example Input: Question: Louis notices that Neptune is farther from the sun than Mercury. Which planet will take longer to rotate around the sun? 
 Answer: Neptune
Example Output: The planets further from the Sun will have bigger orbits, and therefore take longer to revolve around the Sun.

Example Input: Question: The reason that things rotate around the sun is because it is 
 Answer: large
Example Output:
The greater the mass of the objects, the stronger the gravitational force of attraction between them.