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.
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Q: Question: When Katie was in the hospital with low blood pressure, she understood that the volume of her blood was 
 Answer: low

A: As blood volume in the body increases, blood pressure increases.
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Q: Question: The convection of the Earth begins to slow down, so Daniel is worried that the plate tectonics will be 
 Answer: slower

A:
Convection on early Earth was faster and so plate tectonics was faster.
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