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IN-Earth and Space Science A
Unit Test — Unit test
Question 20
20
Quiz
Multiple Choice
Unit Test — Unit test
Question 20 • IN-Earth and Space Science A
65 million years ago there was a mass extinction that is best known for killing the dinosaurs. There was also a large deposit of dust that contained substances only found in asteroids. What most likely killed off the dinosaurs?
Answer
A
An asteroid impact caused the Sun to be blocked.
B
They were crushed by an asteroid.
C
The water supplies were polluted.
D
Mammals evolved to be better competitors.
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