Which zone is characterized by plains and hills and accounts for about 80% of the benthic zone?

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Multiple Choice

Which zone is characterized by plains and hills and accounts for about 80% of the benthic zone?

Explanation:
Think about the deepest part of the ocean floor. Plains and gentle hills are hallmark features of the abyssal plain, which sits far below the sunlit layers. The abyssal zone, extending roughly from about 2,000 meters down to the deepest ocean, is the dominant part of the benthic environment, comprising about 80% of it. That vast, flat-to-undulating seafloor is what the question is describing when it mentions plains and hills. In contrast, the bathyal zone is shallower and includes more varied topography like slopes and canyons, while the disphotic and euphotic zones are in the upper, sunlit parts of the ocean, not the deep benthic floor. So the feature described corresponds to the Abyssal Zone.

Think about the deepest part of the ocean floor. Plains and gentle hills are hallmark features of the abyssal plain, which sits far below the sunlit layers. The abyssal zone, extending roughly from about 2,000 meters down to the deepest ocean, is the dominant part of the benthic environment, comprising about 80% of it. That vast, flat-to-undulating seafloor is what the question is describing when it mentions plains and hills. In contrast, the bathyal zone is shallower and includes more varied topography like slopes and canyons, while the disphotic and euphotic zones are in the upper, sunlit parts of the ocean, not the deep benthic floor. So the feature described corresponds to the Abyssal Zone.

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