Geologic Time Scale Review

What period did geologic cooling start to occur?

• Hadeon

• Archean

• Proterozoic

• Cenozoic

What where the Eons of the Precambrian?

• Hadean, Cambrian, Silurian

• Paleocene, Eocene, Oligocene

• Permian, Triassic, Jurassic

• Hadean, Archean, Proterozoic

Tags

NGSS.MS-ESS1-4

What we the first oxygen producing life called?

• Hemostats

• Stromatolites

• Tomatolites

• Proterotites

Tags

NGSS.MS-LS1-6

The longest subdivision of time

• Eon
• Era
• Epoch
• Extinct

Tags

NGSS.MS-ESS1-4

Eras of the geologic time scale are
divided into ______.

• periods
• ages
• units
• epochs

Tags

NGSS.MS-ESS1-4

Put this in order of smallest to largest time frame.

• Eon, Era, Periods, Epoch
• Periods, Epoch, Eon, Era,
• Epochs, Periods, Eras, Eons
• Eras, Periods, Epochs, Eons

Tags

NGSS.MS-ESS1-4

A toxic atmosphere and the first bacteria formed during the _____eon

• Hadeon

• Archean

• Proterozoic

• Phanerozoic

The buildup of oxygen and the first eukaryotes occurred in the _______eon.

• Hadean

• Archaen

• Proterozoic

• Phanerozoic

Tags

NGSS.HS-ESS1-6

The most accepted theory as to why the ice ages occurred is ____________

• small changes in Earth's orb

• giant bursts of carbon dioxide into the atmosphere

• increases in the number of living organisms on Earth

• large amounts of oxygen released to the atmosphere from the oceans

Tags

NGSS.MS-ESS2-1

NGSS.MS-ESS2-2

Select all of the answers that apply.

The early atmosphere of the Earth was _______.

• mostly carbon dioxide

• extremely cold

• full of oxygen

• hot