More Geologic Time Practice

Current scientific evidence shows that the Earth is estimated to be: 

• Less than 1 millions years old
• Between 3 and 4 billion years old
• More than 4 billions years old
• Less than 2 billion years old

How long in a geologic time period? 

• 3 million years
• 4.6 billion years
• a period doesn't have an exact length
• they are all the same length

The ____________ era was dominated by dinosaurs.

• Precambrian
• Paleozoic
• Mesozoic
• Cenozoic

We are currently in the cenozoic era. 

• True
• False

Which answer choice shows the geologic eras in the correct order from earliest to the most recent?

• paleozoic, precambrian, cambrian, mesozoic, cenozoic
• Precambrian, cenozoic, paleozoic, mesozoic
• Precambrian, paleozoic, mesozoic, cenozoic
• Precambrian, mesozoic, cenozoic, paleozoic

This was known as the era of the reptiles.

• cenozoic
• mesozoic
• precambrian
• paleozoic

Relative dating of rock layers tells us that the deeper we dig, _______.

• the younger the rocks get
• the smellier the rocks get
• the harder the rocks get
• the older the rocks get

This provides information about the history of life on earth and how organisms lived and evolved over time.

• fossil data
• fossil evidence
• fossil  record
• remains of fossil

___________ a record of the geologic events and the evolution of life forms as shown in the fossil record. 

• Eras
• Geologic Time Scale

_{Which rock layer in the diagram seems to be the oldest?}

• F
• E
• B
• A