Earth's History -Test Review

Approximately how old is Earth?

• 4.5 trillion years old

• 4.5 billion years old

• 450,000 years old

• 4.5 million years old

Tags

NGSS.MS-ESS1-4

NGSS.MS-ESS2-2

Which answer below correctly listed the time units from largest to smallest?

• Eon, era, period, epoch

• Era, eon, epoch, period

• Period, eon, era, eon

• Era, period, eon, epoch

Tags

NGSS.MS-ESS1-4

During which time did NO life exist on Earth?

• Phanerozoic Eon

• Hadean Eon

• Archean Eon

• Proterozoic Eon

When did multicellular life emerge on Earth?

• Hadean Eon

• Archean Eon

• Phanerozoic Eon

• Proterozoic Eon

Tags

NGSS.MS-LS4-1

How did scientists divide Earth's history?

• Based on the emergence of life forms on Earth

• Based on the disappearance of life forms on Earth

• Based on development of physical features of Earth

• All of the above

Tags

NGSS.MS-ESS1-4

NGSS.MS-LS4-1

Life FIRST appeared on Earth:

• Around 3.8 billion years ago

• Around 380,000 years ago

• Around 3.8 million years ago

• Around 38,000 years ago

What life forms were responsible for the Great Oxygenation Event?

• Flowering plants

• Ferns

• Cyanobacteria

• Anaerobic microbes

What is believed to first introduce oxygen into the earth's atmostphere?

• ferns

• cyanobacteria (blue green algae)

• pine trees

• grasses

Relatively speaking, how would you describe the emergence of multicellular life?

• Multicellular life arose extremely slow

• Multicellular life arose slow and steadily

• Multicellular life arose quickly, but it took a long time for it to diversify

• Multicellular life exploded rapidly and quickly diversified

The first multicellular life forms on Earth were:

• Simple invertebrates

• Humans

• Small mammals

• Flowering plants