Question

The Mesozoic era was the “Age of Reptiles.” At the end of the Mesozoic era, many groups of animals disappeared suddenly. Scientific evidence suggests that which of the following occurred at that time? a. The Earth stopped rotating for a brief time. c. The animals were hunted to extinction by humans b. A large asteroid or comet impacted the Earth. d. The animals began living underground.

Answer 1

A large asteroid or comet impacted the earth.