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.

Ex Input:
Question: If John increases the rate at which gas exits the bottom of his rocket, what will happen to the upward momentum of the rocket? It will 
 Answer: increase

Ex Output:
The rocket goes upwards because the hot gases shoot downwards out of the nozzle. The faster the gases go downwards, the faster the rocket goes upwards.


Ex Input:
Question: If Mona is putting together a new crib and she wants to have a harder time screwing the pieces together, what should she look for in a screw? 
 Answer: farther threads

Ex Output:
Therefore, if the threads on a screw are closer together, you need to apply less force to penetrate the wood or other object.


Ex Input:
Question: If Jim wants to find a lower concentration of old fossil water he needs to move _____ into an aquifer? 
 Answer: shallower

Ex Output:

Deeper aquifers typically contain older 'fossil water.'