Read the Following Scenario and Answer the Question Below

question 49

Multiple Choice

Read the following scenario and answer the question below.
Diets that incorporate seafood can be healthy for us and kind to the environment. However, all seafood is not comparable, so choice is important. Mollusks such as oysters, mussels, and scallops are good choices if they are grown suspended in water, because dredging for these mollusks damages seafloors. On fish farms, this involves growing organisms on nets, trays, or racks. Because mollusks are filter feeders, farmed mollusks can actually improve water quality. Although shrimp are also filter feeders, shrimp farms, especially in Southeast Asia, are often built in coastal areas where mangroves are destroyed to make room for farms. As long as excessive quantities of grain or wild fish are not used for feed, aquaculture can be a very good alternative to open ocean fishing because it can reduce bycatch, the pressure on wild stocks, and the fossil fuel use required at sea. Exceptions are farms that raise transgenic salmon, which often spread disease, or where the farmed fish become oversized and outcompete the native fish. These salmon consume massive quantities of fish feed, so better fish choices are farm-raised talapia, striped bass, and sturgeon.
In the wild, Pacific halibut, salmon, sablefish, and sardines are good choices because they are fished selectively. Wild grouper, shark, swordfish, tuna, and orange roughy must be consumed cautiously because water they inhabit usually contains high levels of mercury, PCBs, dioxins, or pesticides, which can biomagnify in food webs and bioaccumulate in fish tissues. Wild Chilean sea bass, Atlantic cod, and Atlantic halibut should be avoided because their populations have been overfished. Orange roughy have been overfished, reproduce slowly, and are fished with bottom-trawlers that frequently damage bottom habitat.
-The main environmental problem caused by harvesting bottom- dwelling mollusks is .

• A)habitat destruction
• B)introduction of invasive species
• C)high bycatch
• D)removal of keystone species
• E)bioaccumulation

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The amount of money that a buyer pays to purchase a product or service.

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Net Proceeds refer to the amount of money received from a sale or transaction after all fees, expenses, and costs have been deducted.

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Assets or securities that can be easily sold or converted into cash, typically without significant loss of value.