Paleontology Precambrian Time Quiz

The Precambrian time started ___ _______ years ago.

• 100 million

• 4.5 billion

• 4.6 million

Precambrian means “______ ___ ________ ______.”

• Before the cambrian period

• after the cambrian period

• in the middle of the cambrian period

Precambrian time covers __% of the geologic time scale.

• 2%

• 50%

• 90%

Which two sciences make the studies of Earth’s formation both possible and reliable?

• geology and biology

• history and science

• Astrophysical and physics

What are the three subdivisions of the Precambrian?

• Hadean

• Archaean

• Proterozoic

• All of the above

Reliable evidence that helps us understand how the Precambrian formed is from the formation of __________, ______, and __________.

• Landmasses, oceans, and atmosphere

• buildings, roads, and towns

• countries, cities, and territories

Describe the Precambrian fossil record.

• No! It doesn’t exist

• 1000 million years ago

• yes it does exist

What are the five major events of the Precambrian?

• Formation of the sun and light

• Formation of Earth and Life

• Formation of the Atmosphere

• Formation of the oceans

• All of the Above

All Precambrian life forms were usually what?

• Simple one-celled organisms to multi-celled creatures

• ocean mammals

• bacteria

What were these life forms missing?

• No hard skeletons

• soft shell turtles

• hard bones