Geological Time Scale Period 4

Earth is _______ years old?

• 46 Billion

• 4.6 Million

• 4.6 Billion

• 4,600

Tags

NGSS.MS-ESS1-4

Mammals were dominant in which era?

• Paleozoic

• Cenozoic

• Mesozoic

Tags

NGSS.MS-LS4-1

Which is the longest time period in the geological time scale?

• Period

• Epoch

• Era

• Eon

What are the four eras in order from oldest to youngest?

• Precambrian, Paleozoic, Mesozoic, Cenozoic

• Cenozoic, Mesozoic, Paleozoic, Precambrian

• Mesozoic, Precambrian, Cenozoic, Paleozoic

Tags

NGSS.MS-ESS1-4

What era are we currently in?

• Mesozoic

• Cenozoic

• Paleozoic

Dinosaurs were dominant during which Era?

• Precambrian

• Paleozoic

• Mesozoic

Tags

NGSS.MS-LS4-1

Which time period covered more than 80% of Earth's history?

• Mesozoic

• Precambrian

• Cenozoic

Tags

NGSS.MS-ESS1-4

What happened during the "Cambrian Explosion"?

• There was a mass extinction

• Dinosaurs began to dominate Earth

• A major increase in the number and diversity of invertebrate animals

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

Which came first?

• Trilobites are the dominant species

• The age of reptiles

• Early humans arise on Earth

Tags

NGSS.MS-LS4-1

Cyanobacteria released this gas into Earth's atmosphere when they evolved?

• Carbon Dioxide

• Hydrogen Sulfide

• Oxygen