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% for one year, all of the following marine communities most likely would be greatly affected except
A)deep-sea vent communities.
B)coral reef communities.
C)benthic communities.
D)pelagic communities.
E)estuary communities.

Question

Quizplus · Accepted Answer

Deep-sea vent communities rely on chemosynthesis rather than photosynthesis, so they would not be greatly affected by a reduction in sunlight. The other communities all rely on photosynthesis to some extent and would be negatively impacted by decreased sunlight.

If a Meteor Impact or Volcanic Eruption Injected a Lot