Answer:
The Chicago sanitary and naval channel must not be closed permanently.
Step-by-step explanation:
The second paragraph of the text states that "Asian carp were introduced to American waters during the 1970s. Southern fish farmers began importing them to help clean their ponds." This shows that Asian Carp was not a naturally occurring species in the country and was brought here, with clear and well-defined objectives.
However, the people responsible for bringing this fish to American land have not researched enough to understand that in the USA, Asian carp could bring serious economic and social problems to society. As shown in the text "it didn't take too long for them to escape from these ponds, perhaps from flooding, and get into the Mississippi River, "where asian carp has become a real pest. This is because in addition to not being suitable for consumption, this fish competes with native species, has no natural predators to limit its population growth, and shows a serious danger for people who want to swim or do any other activity in the waters of that river.
Due to all these problems, barriers were created to prevent Asian carps from invading the Mississippi River, however, the barriers will not be enough to control this invasion forever, for this reason, many government officials consider closing the Chicago sanitary and naval channel. permanently, however this would not be a good idea since the text shows that the channel has a very high value in the transport of vessels and closing it could cause problems for society.
Therefore, the best thing to do is to invest in research that can study ways to control Asian carp efficiently and with little impact on society.