2024 Geologic Time Test

How many periods make up the Paleozoic Era?

• 3
• 5
• 7
• 9

What period is associated with the evolvement of plants?

• Cambrian
• Ordovician
• Silurian
• Carboniferous

In what period did birds evolve?

• Triassic
• Jurassic
• Cretaceous

Which mass extinction resulted in the greatest loss of life?

• Permian
• Creataceous

Geologist mark the division of the Geologic Time Scale by

• same length of time
• fossil records
• rock evidence

What era are we currently in?

• Precambrian Era
• Mesozoic Era
• Cenozoic Era
• Paleozoic Era

Which era accounts for the majority of Earth's history?

• Paleozoic Era
• Precambrian Era
• Mesozoic Era
• Cenozoic Era

How old is Earth?

• 4.6 million years old
• 4.6 billion years old
• 460,000 years old
• Option 4

What marked the beginning of the Cambrian Explosion?

• explosion of a volcano
• explosion from an asteroid
• explosion of life

Which statement below does NOT explain what the geologic time scale is?

• a visual record of Earth's history
• it is permanent and cannot be changed even if new fossils are discovered
• created by scientist to better understand how Earth has changed over time