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: If Mona reduces she is creating for her school project, what happens to the gravitational attraction of that object? 
 Answer: decrease
Example Output: The greater the objects mass, the greater the force of gravitational attraction.

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: Jim is designing a new car and playing around with different materials. If he were to increase the weight of the vehicle, what would happen to the fuel efficiency of that vehicle? It would 
 Answer: decrease
Example Output:
Lighter, more streamlined vehicles need less energy.