The "great dying," which saw 96% of all species extinct, was partially caused by(1 point)

Question

Responses

bacteria producing large amounts of toxic methane.
bacteria producing large amounts of toxic methane.

lower levels of carbon dioxide in the air.
lower levels of carbon dioxide in the air.

an asteroid impact.
an asteroid impact.

algae consuming too much oxygen from the ocean.

Answer 1

The "great dying," or the Permian-Triassic extinction event, is believed to have been caused by several factors, but one major contributing factor was likely:

bacteria producing large amounts of toxic methane.

This event led to severe climate changes, ocean anoxia, and a dramatic decline in biodiversity.