World History

How old is the earth?

• 1.6 million years

• 4.5 billion years

• 4.5 million years

• 100,000 years

How old is the moon?

• 1.6 million years

• 5 billion years

• older than 4 billion years

• 100,000 years

The longest amount of time, geologically speaking, is the

• Mesozoic

• Precambrian

• Paleozoic

• Jurassic

The most recent amount of time, geologically speaking, is the

• Mesozoic

• Cenozoic

• Paleozoic

• Jurassic

The geological era that includes the largest in size and largest number of dinosaurs is the

• Mesozoic

• Cenozoic

• Paleozoic

• Precambrian

The percentage of time that Earth was in Precambrian time is

• less than 1%

• 12%

• 50%

• 88%

The percentage of time that Earth has had humans is

• less than 1%

• 12%

• 50%

• 88%

We are currently in a time known as

• Ancient Time

• Medieval Time

• Agricultural Time

• Modern History/ Contemporary Time

The difference between History and Prehistory is

• agriculture

• domestication of animals

• writing and written records

• dinosaurs became extinct