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.

Input: Consider Input: Question: Willard dug up a rock from near the surface, and realized it was _____. 
 Answer: young

Output: Therefore, deeper rock layers must be older than layers closer to the surface.


Input: Consider Input: Question: An _____ pulse rate is a sign of less oxygen to cells. 
 Answer: increased

Output: This causes the delivery of less oxygen to the cells, and this stimulates the heart rate via adrenalin, so that pulse rate increases in an effort to deliver enough oxygen to cells.


Input: Consider Input: Question: Milo was moving some metal balls around. If he were to move the balls closer together, what would happen to the force of gravity? 
 Answer: increase


Output: Objects that are closer together have a stronger force of gravity.