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Earth's Eras

Total questions: 10

Worksheet time: 5mins

Name
Class
Date
1.

What are the three most recent eras in order from youngest to oldest?

a)

Cenozoic, Paleozoic, Mesozoic

b)

Cenozoic, Mesozoic, Paleozoic

c)

Mesozoic, Paleozoic, Cenozoic

d)

Paleozoic, Cenozoic, Mesozoic

2.

What is the current biological era?

a)

Paleozoic

b)

Mesozoic

c)

Cenozoic

d)

Jurassic

3.

What is the range of years in the Cenozoic era?

a)

0-125 million years ago

b)

0-56 million years ago

c)

125-200 million years ago

d)

0-65 million years ago

4.

What is the range of years in the Paleozoic era?

a)

300-600 million years

b)

299-542 million years

c)

638-738 million years

d)

739-837 million years

5.

What is the range of years in the Mesozoic era?

a)

74-847 million years

b)

73-82 million years

c)

84-93 million years

d)

65-252 million years

6.

What time period did the dinosaurs go extinct?

a)

Jurassic

b)

Triassic

c)

Cretaceous

d)

Mississippian

7.

What time period did the dinosaurs dominate the planet?

a)

Triassic

b)

Jurassic

c)

Cretatouse

d)

Eocene

8.

What time period did the first dinosaurs exist?

a)

Cretaceous

b)

Jurassic

c)

Triassic

d)

Permian

9.

How has global warming effected our atmosphere carbon dioxide?

a)

Nothing

b)

Increaced

c)

Decreased

10.

What does the law of superposition state?

a)

undisturbed horizontal sedimentary rock layers the oldest layers is at the top.

b)

undisturbed horizontal sedimentary rock layers the youngest layers is at the bottom.

c)

undisturbed horizontal sedimentary rock layers the oldest layers is at the bottom.

d)

undisturbed horizontal sedimentary rock layers the oldest layers is in the middle