Question

which of the following best explains the environmental problems associated with trawling?
a. trawling always destroys sea floor ecologies.
b. trawling gathers fish indiscriminately.
c. trawling is too selective at gathering fish.
d. all of the above
please select the best answer from the choices provided
a
b
c
d

Explanation:

• Option a: Trawling involves dragging nets along the seafloor, which physically damages and destroys seafloor habitats and ecologies.
• Option b: Trawling nets capture all marine life in their path, not just target fish, leading to bycatch of non-target species, meaning it gathers fish indiscriminately.
• Option c is incorrect because trawling is not selective; it is the opposite, so this option is invalid. Since option c is wrong, "all of the above" is not correct. The correct answers are a and b, but since the options are structured this way, the best valid combined reasoning shows that a and b are correct, but the original marked D is wrong. The correct best answer is the combination of a and b, but from the given choices, the accurate explanation is that a and b are valid environmental issues of trawling, while c is false, so D is incorrect. The correct answer should be the options that are true: a and b, but since we have to choose from the given single choice format, the error in the marked D is corrected by noting that c is false, so the best answer is the set of a and b, but as per the options, the correct selection is:

Answer:

a. Trawling always destroys sea floor ecologies.
b. Trawling gathers fish indiscriminately.

Note: Option c is incorrect because trawling is not selective, so "All of the above" (d) is also incorrect. The valid explanations are for options a and b, which are the correct environmental problems linked to trawling.