Earth History

Which is the most recent era of time- the one that we are currently in?

• Mesozoic 

• Paleozoic 

• Cenozoic 

• Precambrian 

Which era is known as the "age of reptiles"

• Paleozoic Era

• Cenozoic Era

• Mesozoic Era

• Precambrian Era

The Era when humans first appeared was...

• Cenozoic

• Mesozoic

• Paleozoic

• Precambrian

The time span that lasted the longest was the...

• Precambrian

• Paleozoic

• Mesozoic

• Cenozoic

Which era is known as the "age of mammals"

• Cenozoic Era

• Precambrian Era

• Paleozoic Era

• Mesozoic Era

The single land mass that existed about 245 million years ago is named what?

• Fossil

• Pangea

• Bob

• Tectonic plates

When did the Precambrian era begin

• 66 mya

• 4.6 bya

• 540 mya

• 245 mya

During which era did the earliest dinosaurs appear?

• Cenozoic

• Paleozoic

• Mesozoic

• Precambrian

Pangaea broke up during the 

• Paleozoic

• Mesozoic

• Cenozoic

• Precambrian

During which era did the ice ages occur?

• Precambrian 

• Paleozoic

• Mesozoic

• Cenozoic