Eras of the Earth

How many eras has the Earth gone through?

• 3

• 9

• 2

• 4

What are the names of the four eras of Earths history?

• Carbohydrates, Protein, Dairy, Vegetables

• Precambrian, Mesozoic, New York, Paleozoic

• Precambrian, Mesozoic, Cenozoic, Paleozoic

• Lakes, Rives, Oceans, Swamps

How long ago was the Precambrian Era?

• 4,600,000,000

• 5,600,000,000

• 500,000,000

• 1,200,000

Approximately how long ago was the Paleozoic Era

• 1,000,000,000

• 500,000,000

• 100,000

• 900,000

Approximately how long did the Mesozoic Era last for

• 251 million years ago

• 180 million years ago

• 65 million

• 1 billion years

How long has the Cenozoic Era been around for?

• 65 million years

• 5 million years

• 200 millions years

• 500 thousand years

What part of Canada existed during the Precambrian Era?

• Western Cordillera

• Canadian Shield

• Appalachian Mountains

• Interior Plains

What living species existed during the Precambrian Era?

• Dinosaurs

• Lions

• Sharks

• Single celled organisms

What other region of Canada formed during the Paleozoic Era due to plates colliding?

• Interior Plains

• Western Cordillera

• Appalachian Mountains

• Hudson Bay Lowlands

Continents formed into ______ because of _______?

• Pangaea & because of colliding

• Pangaea & because of separating

• Earth & because of colliding

• Earth & because of faulting