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 Mary is taking a picture and she shuts the camera shutter narrower what will happen to the amount of light that gets in? 
 Answer: decrease
[A]: A camera shutter stays open longer in dim light to let more light in.


[Q]: Question: Long ago the surface of Venus warmed enough that greenhouse gases escaped into the atmosphere. As a result, the greenhouse effect on that planet 
 Answer: increased
[A]: An increase in greenhouse gases leads to greater greenhouse effect.


[Q]: Question: Waves _____ when winds blow harder. 
 Answer: increase
[A]:
The stronger the winds are blowing, the larger the waves are and the more energy they have.