If a meteor impact or volcanic eruption injected a lot of dust into the atmosphere and reduced the sunlight reaching Earth's surface by 70 percent for 1 year, which of the following marine communities most likely would be LEAST affected?
A) deep-sea vent
B) coral reef
C) intertidal
D) pelagic
E) estuary

Question

Quizplus · Accepted Answer

Deep-sea vents rely on chemosynthesis rather than photosynthesis for energy and therefore are not dependent on sunlight. The other communities mentioned all require sunlight for primary production, so they would be more severely affected by a reduction in sunlight.

If a Meteor Impact or Volcanic Eruption Injected a Lot