What variables need to be considered in order to estimate how ...

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What variables need to be considered in order to estimate how much mercury-rich seafood is safe to eat?
 
  What will be an ideal response?

Question 2

In the deep ocean, coarse sediments from nearby land sources are found on the ________.
 
  A) abyssal plains and in deep trenches
  B) continental rise
  C) continental shelf
  D) flanks of oceanic ridges and rises
  E) steep areas of the continental slope

[Jody Vaughn]

Answer to Question 1

Studies conducted on the amount of seafood consumed by various human populations have helped establish safe levels of methylmercury in marketed fish. The variables considered were: 1. The rate at which each group of people consumed fish; 2. The methylmercury concentration in the fish consumed by that population; and 3. The minimum ingestion rate of methylmercury that induces disease symptoms. These three variables help establish a maximum allowable methylmercury concentration that will safeguard people from mercury poisoning, as long as they don't exceed the recommended intake of fish.

Answer to Question 2

B