Question

read the claim below.
the practice of large - scale aquaculture, or \fish farming,\ should be banned.
select the piece of evidence that best supports this claim.
aquaculture makes more food available to a growing world population in which hunger affects one in nine.
the majority of farmed atlantic salmon imported into the united states comes from canada, norway, and chile.
aquaculture can contaminate water systems with the pesticides and antibiotics used to treat farm - raised fish.

Explanation:

To support the claim that large - scale aquaculture should be banned, we need evidence of its negative impacts. The first option ("Aquaculture makes more food available...") is a positive aspect and doesn't support a ban. The second option ("The majority of farmed Atlantic salmon...") is just about the origin of farmed salmon and has no bearing on why it should be banned. The third option ("Aquaculture can contaminate water systems...") shows a negative environmental impact (contamination of water systems with pesticides and antibiotics), which gives a reason to ban large - scale aquaculture.

Answer:

The option "Aquaculture can contaminate water systems with the pesticides and antibiotics used to treat farm - raised fish."