History of Earth #1

What has been the basis for the division of history?

• Fossils

• Time

• Water

• Carbon

The largest unit on the time scale is known as...

• Eon

• Era

• Period

• Epoch

The 3 earliest eons make up the...

• Precambrian

• Cambrian

• Paleozoic

• Cenozoic

The dinosaurs existed during the..

• Mesozoic

• Cenozoic

• Paleozoic

• Cambrian

Why are there no more dinosaurs?

• Mass extinction event

• They're hiding

• They never existed

• They went to the moon

Mammals began to dominate during the...

• Mesozoic

• Cenozoic

• Pleistocene

• Phanerozoic

The earliest human ancestors were known as....

• Monkeys

• Primates

• Gorillas

• Dinosaurs

Which of the following is evidence of uniformitarianism?

• Beaches

• Fossils

• Time

• Asteroids

Modern humans appeared during the...

• Carboniferous

• Pleistocene

• Mesozoic

• Cenozoic

What is the significance of the geologic time scale?

• It measures the depth of the ocean

• It is a timeline that organizes Earth's history

• It predicts future geological events

• It measures the height of mountains