Multiple choice

Which of these things helped to prove the Alvarez team's hypothesis?

  1. The Monongalia Crater

  2. The Cretaceous Crater

  3. The Jurassic Crater

  4. The Chicxulube Crater

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The discovery of the Chicxulub Crater in Mexico provided the crucial physical evidence of a massive asteroid impact dating to the boundary of the Cretaceous period, supporting the Alvarez hypothesis.