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 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
[EX A]: A camera shutter stays open longer in dim light to let more light in.

[EX Q]: Question: Shane wants a field that is very strong. In order do achieve this goal, Shane needs to draw
Answer: more field lines
[EX A]: The more field lines that are drawn, the stronger the field.

[EX Q]: Question: When people live in less polluted areas they will have
Answer: less disease.
[EX A]:
Certain respiratory conditions can be made worse in people who live closer to or in large cites.