Question

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

a. solar radiation
c. an ice age
b. a meteor or asteroid colliding with Earth
d. volcanic activity

Answer 1

B. a meteor or asteroid colliding with Earth

Step-by-step explanation:

On edgenuoty 2020

Answer 2

The answer to the question stated above is letter b. a meteor or asteroid colliding with Earth
The mass extinction at the end of the Mesozoic Era was caused by a meteor or asteroid colliding with Earth. This was said to happen about 65 million years ago.