Ancient Earth Geologic Time Scale

Which of the following is the correct order of the eons from oldest to youngest?

• Proterozoic, Archean, Hadean, Phanerozoic

• Hadean, Archean, Proterozoic, Phanerozoic

• Archean, Hadean, Proterozoic, Phanerozoic

• Phanerozoic, Proterozoic, Archean, Hadean

Tags

NGSS.MS-ESS1-4

Which major event occurred during the Proterozoic Eon?

• Formation of the first oceans

• First appearance of multicellular life

• First appearance of dinosaurs

• Formation of the supercontinent Pangaea

Tags

NGSS.MS-LS4-2

What significant event marks the beginning of the Archean Eon?

• Liquid water on Earth's surface appears

• First appearance of life

• Formation of the moon

• First appearance of birds

The Cambrian Explosion is characterized by:

• The extinction of dinosaurs

• A rapid increase in the diversity of life forms

• The formation of the first oceans

• The appearance of the first humans

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

During which eon and era did the Ediacaran Diversification occur?

• Phanerozoic / Mesozoic

• Archean / Neoarchean

• Proterozoic / Paleoproterozoic

• Proterozoic / Neoproterozoic

Which of the following is NOT a major event of the Archean Eon?

• Formation of the first continents

• Beginning of plate tectonics

• First appearance of eukaryotic cells

• Formation of the first oceans

What is the significance of the Proterozoic Eon in geologic history?

• It marks the formation of the first oceans

• It marks the first appearance of complex life forms

• It marks the extinction of dinosaurs

• It marks the formation of the supercontinent Pangaea

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

NGSS.MS-ESS2-2

What marks the end of the Proterozoic Eon?

• The Cambrian Explosion

• The formation of the first oceans

• The extinction of dinosaurs

• The appearance of the first humans

Tags

NGSS.MS-ESS1-4

Which of the following is a major event of the Cambrian Explosion?

• The first appearance of mammals

• The first appearance of most major animal phyla

• The first appearance of birds

• The first appearance of flowering plants

Tags

NGSS.MS-LS4-1

Reorder the following geological events from most ancient to most recent

• Earliest plate tectonics

• Snowball Earth

• Nuna supercontinent

• Great oxygenation

• Rodinia supercontinent

Tags

NGSS.MS-ESS2-3