Question

which contaminant mineral blocks the metabolic sites of minerals so that they are unable to perform their roles?
○ a. lead
○ b. mercury
○ c. cadmium
○ d. antimony

Explanation:

Mercury is a contaminant mineral that can block the metabolic sites of essential minerals, interfering with their normal functions. Lead, cadmium, and antimony have different mechanisms of toxicity or do not primarily act by blocking mineral metabolic sites in the same way as mercury.

Answer:

b. Mercury