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: Sarah ate a piece of shark meat for dinner, Sarah's levels of toxic metals have 
 Answer: increased or

A: The higher up a food chain that humans eat, the greater the levels of toxic metals they take in.
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Q: Question: When Katie was in the hospital with high blood pressure, she understood that the volume of her blood was 
 Answer: high

A: As blood volume in the body increases, blood pressure increases.
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Q: Question: If less waters falls on an area of land it will cause _____ plants to grow in that area? 
 Answer: less

A:
As more water covered the land, sand and silt were washed in and covered the dead vegetation, enabling more and more plants to grow.
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