Question

It is believed that nearly 95% of animals on Earth became extinct due to massive volcanic activity that occurred nearly 247 million years ago. How did this increased volcanic activity cause mass extinction?

Responses

A. It reduced the salinity of the seawater.

B. It caused frequent changes in the climate.

C. It caused rapid movement of tectonic plates.

D. It increased greenhouse gases in the atmosphere.

Answer 1

I think that it is also B because volcanism triggered global cooling and falling oxygen levels in the oceans. Which can result in mass extinction

Answer 2

It’s b
Because with everything that happened with that volcano erupting and ashes being everywhere caused the sun to blocked out and plants to die and ect.