Geologic Time Scale Quiz

On the geologic time scale, eras are divided in to

• Epochs
• Periods
• Indexes
• Relative dates

In what era were dinosaurs the dominant species?

• 
  Cenozoic
• Paleozoic
• Mesozoic
• Quarternary

What are the eras of the Phanerozoic Eon in order from oldest to most recent?

• Paleozoic, Cenozoic, Mesozoic
• Mesozoic, Cenozoic, Paleozoic
• Mesozoic, Paleozoic, Cenozoic
• Paleozoic Mesozoic, Cenozoic

Approximately how long ago does Earth's history date back to?

• 12 bya
• 4.6 bya
• 2 mya
• 65 mya

The earliest forms of life appeared during the

• Paleozoic Era
• Cenozoic Era
• Precambrian Time
• Mesozoic Era

What event marks the end of each geologic area?

• impact catastrophe
• burst of new life forms
• mass extinction
• ice age

During which geologic time or era did humans first appear?

• Cenozoic
• Mesozoic
• Paleozoic
• Precambrian

During which geologic era did flowering plants first appear?

• Paleozoic
• Mesozoic
• Cenozoic
• Precambrian

During which geologic era dis arachnids (spiders) and insects first appear?

• Paleozoic
• Mesozoic
• Cenozoic
• Precambrian

Which of the following correctly lists the layers of rock in order from youngest to oldest?

• A, B, C, D, E
• B, C, D, E, A
• E, D, A, B, C
• C, B, A, D, E