10
QuizMultiple Choice

Middle and Recent Earth History

Question 10 • LVA-Earth and Space Science - FALL

The mass extinction at the end of the Mesozoic Era was caused by ______.

Answer
A
solar radiation
B
a meteor or asteroid colliding with Earth
C
an ice age
D
volcanic activity

Explanation

The end-of-Mesozoic mass extinction is most strongly linked to a large asteroid or meteor striking Earth about 66 million years ago. The impact caused severe environmental changes; the correct choice is “a meteor or asteroid colliding with Earth.”

AI-written and checked against the verified answer.