Unit 5 Shaping the Earth DL "QUIZ" - Use notes; do not copy

The earth is ______________of years old

• Hundreds

• Millions

• Billions

• Trillions

Mammals are a dominant group in which era?

• Cenozoic

• Mesozoic

• Paleozoic

• Cambrianozoic

What type of event usually marks the end of an Era

• A Mass Extinction

• A Quinceanera

• An earthquake

• A Volcanic Eruption

What are the four eras in order from OLDEST to NEWEST?

• Pre-Cambrian, Paleozoic, Mesozoic, Cenozoic

• Pre-Cambrian, Mesozoic, Paleozoic, Cenozoic

• Cenozoic, Mesozoic, Paleozoic, Pre-Cambrian

• Mesozoic, Pre-Cambrian, Cenozoic, Paleozoic

What era did trilobites, fishes, and other marine organisms dominate?

• Precambrian

• Paleozoic

• Mesozoic

• Cenozoic

Which era is the most recent, the one that we are currently in?

• Mesozoic

• Paleozoic

• Cenozoic

• Precambrian

The dinosaurs and reptiles were dominant in which Era?

• Precambrian

• Mesozoic

• Paleozoic

• Cenozoic

90% of Earth’s history occurred during which era?

• Precambrian

• Paleozoic

• Mesozoic

• Cenozoic

When did the first birds appear?

• Cambrian

• Permian

• Cretaceous & Triassic

• Mesozoic and Jurassic

How do most fossils form?

• A living thing dies and is buried under sediment
• The sediment is compressed and compacted 
• They are formed in sedimentary rock
• All of these answers