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: If Jim is playing with two objects and he moves them further away from each other, what will happen to the gravitational force between the two objects? 
 Answer: decrease
[A]: The further objects are away from each other, the smaller the gravitational force.


[Q]: Question: Dan falls from a single stair one day, then the next day falls down three stairs at once. After falling down one stair, compared to three, Dan will experience 
 Answer: less friction
[A]: Heavier objects press together with greater force, and this causes greater friction between them.


[Q]: Question: Evan is picking up rocks on the beach. Some rocks are very basic small ones, and others are large, clumpy stones with different textures. The rocks that are more difficult to identify had amounts of metamorphism that were 
 Answer: more extreme
[A]:
The more extreme the amount of metamorphism, the more difficult it is to tell what the original rock was.