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