<span>Trophic levels refer to where organisms fall on the food chain. Fish from higher trophic levels are often larger and have a higher dollar value at market, resulting in overfishing and the depletion of those species from the wild. If those fish are continued to be consumed at a high level, the loss of predators at the top of the food chain could throw off the balance in the ecosystem.</span>
Answer:
Question one: B.
Question two: A
Explanation:
Sorry I didn't know the rest.
Answer:
The Soviet Union under Joseph Stalin and The People's Republic of China with Mao Zedong
Explanation:
It's on Britannica
