Question

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

an asteroid impact.
an asteroid impact.

algae consuming too much oxygen from the ocean.
algae consuming too much oxygen from the ocean.

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

bacteria producing large amounts of toxic methane.

Answer 1

bacteria producing large amounts of toxic methane.

(Volcanic warming triggered widespread anoxia and microbial release of greenhouse/toxic gases—contributing to the end‑Permian "Great Dying.")