Which of the following marine ecosystems is least polluted from ocean dumping and coastal development?
A) Mangrove swamps
B) Deep-ocean trenches
C) Coral reefs
D) Wetlands
E) Estuaries

Question

Quizplus · Accepted Answer

Deep-ocean trenches are the least accessible areas in the ocean and hence, least affected by ocean dumping and coastal development. Mangrove swamps, coral reefs, wetlands, and estuaries are all coastal ecosystems and are directly impacted by human activities such as pollution and development.

Which of the Following Marine Ecosystems Is Least Polluted from Ocean