History of Earth Quiz

How old is the Earth?

• 3 billion years

• 100,000 years

• 4.6 billions years

• 2000 million years

Which period of time takes up over 85% of our Earth's history?

• precambrian eon

• paleozoic era

• mesozoic era

• cenozoic era

Which period of time is known as the age of the dinosaurs?

• precambrian eon

• paleozoic era

• mesozoic era

• cenozoic era

What occurred in between each major time period?

• population burst

• mass extinction

• nothing

Which time period is known as the age of the mammals?

• precambrian eon

• paleozoic era

• mesozoic era

• cenozoic era

What major life form evolved 3.5 bya?

• prokaryotes

• eukaryotes

• multi-cellular animals

• homo sapiens

How long ago did humans first inhabit Earth?

• 4.6 bya

• 3.5 mya

• 1.75 mya

• 100,000 ya

What term means that fossils will always appear in the soil in a logical order?

• superpositioning

• faunal succession

• original horizontality

Who was the scientists that pieced together a rough geologic time scale based on fossil findings?

• Mendel

• Darwin

• Smith

• Hunt

Which of the following gives specific dates or ages?

• relative time

• absolute time