Global Extinction

Question 1

Q: Why did the Chicxulub impact cause mass extinction?

Answer 1

A:

Immediate destruction from the impact and heat pulse.
Long-term starvation and habitat collapse due to reduced sunlight and colder temperatures.
Disruption of ecosystems both on land and in the oceans.

Question 2

Q: Which era began after the Chicxulub impact?

Answer 2

A: The Cenozoic era, marking the end of the Mesozoic.