The Permian mass extinction is hypothesized to have been caused by volcanic eruptions resulting in:
A)global warming, lack of oxygen in seawater, and ocean acidification.
B)ocean acidification.
C)lack of oxygen.
D)global warming.
E)global warming and lack of oxygen.

Question

Quizplus · Accepted Answer

The Permian mass extinction is commonly associated with the Siberian Traps volcanic eruptions, which released large amounts of greenhouse gases into the atmosphere, causing global warming. As temperatures rose, the oceans also became warmer and more acidic, leading to a lack of oxygen in seawater. This combination of factors is thought to have led to the extinction of over 90% of marine species and over 70% of terrestrial species.

The Permian Mass Extinction Is Hypothesized to Have Been Caused