1. Will loves to go fishing in the coastal estuary. He brings home his catch every weekend and bakes the fish for dinner. The next time he goes to his favorite fishing area, a sign is in place, warning residents of high heavy metals in the water. Which statement best explains the impact of eating fish from the estuary? Heavy metals can biomagnify in large fish, making human consumers ill.
Heavy metals are water soluble; humans can eat them in small amounts.
Large fish will die from the heavy metals, but small fish can be consumed.
Will should avoid small fish but can collect large fish with less heavy metals.

2. fisherman collecting shellfish notices that many are very small and lack the thick hard shell he is accustomed to seeing in the species. Which statement best explains what may be impacting the shellfish population?

Ocean acidification
Ocean warming
Coral bleaching
Climate change