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1. What is the name of the man who first demonstrates that species become extinct?

George Cuvier.

2. In what year is extinction first demonstrated?

1786.

3. What is the name of the man who discovers high levels of iridium at the K-T boundary?

Luis Alvarez.

4. When are the high levels of iridium at the K-T boundary discovered?

1980.

5. Where are high levels of iridium typically found?

Meteors.

6. Who first set forth the theory of evolution?

Charles Darwin.

7. According to the Introduction, extinction is considered as unremarkable as what?

A car running out of gas.

8. What does the "K" in K-T boundary stand for?

Cretaceous.

9. What does the "T' in K-T boundary stand for?

Tertiary.

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