Practice Quiz 4: Geologic Time Scale

In which time period are we currently living?

• Precambrian Time

• Paleozoic Era

• Mesozoic Era

• Cenozoic Era

Jellyfish are one of the oldest species on Earth. In what time period did they first appear?

• Precambrian

• Paleozoic

• Mesozoic

• Cenozoic

In what time period did Pangaea, the super continent, appear?

• Precambrian

• Paleozoic

• Mesozoic

• Cenozoic

Dinosaurs, small mammals, and birds are found in this time period.

• Precambrian

• Paleozoic

• Mesozoic

• Cenozoic

Preserved remains of plants and animals from the remote past are called?

• Sedimentary rocks

• Radioactive dating

• Decayed organisms

• Fossils

The Law of Superposition states

• Younger rocks layers are on top of older rock layers

• Fossils are found in sedimentary rocks

• Older rock layers are on top of younger rock layers

• Absolute age dating

Which era was the longest, taking up 88% of geologic time?

• Precambrian

• Paleozoic

• Mesozoic

• Cenozoic

Which fossil would make the best index fossil?

• Beetle

• Flower

• Frog

• Fish

Which era best represents when humans first appeared on Earth?

• Cenozoic

• Mesozoic

• Archean

• Hadean

Use relative age dating to put the rock layers in correct order from oldest to youngest.

• B, D, A, E, C

• C, E, D, A, B

• A, C, E, D, B

• C, E, D, B, A