instruction:
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.
question:
Question: If Mona is a nursing mother and her body begins producing more prolactin then before, what happens to the amount of milk she will produce? 
 Answer: increase
answer:
The more the baby suckles, the more prolactin is released, which causes more milk to be produced.


question:
Question: Jeff is stopping exercising his muscles at home. Over time his muscles will grow 
 Answer: smaller
answer:
Muscles that are exercised are bigger and stronger than muscles that are not exercised.


question:
Question: Reid is modelling the greenhouse effect in a simulation. If he increases greenhouse gas levels, the greenhouse gas effect will 
 Answer: increase
answer:

An increase in greenhouse gases leads to greater greenhouse effect.