Review history of Earth and rocks

Which element is most abundant in the air?

• Nitrogen

• Oxygen

• Helium

• Carbon Dioxide

What is another name for the layer of rock that makes up the crust?

• hydrosphere

• lithosphere

• troposphere

• stratosphere

Which layer of Earth is the thickest?

• core

• mantle

• crust

• shell

The layer of the Earth that is made of rocks and soil is called the

• mantle

• core

• cement

• crust

Which process may result in igneous rocks?

• evaporation

• cementation

• melting

• compression

Where would the oldest fossils be found?

• surface of the Earth

• space

• deep in Earth's crust

• in the mountains

• The fossils in layer C are older than those in layer A.

• The fossils in layer B are older than those in layer C.

• The fossils in layer A are older than those in layer C.

• The fossils in layer A are older than those in layer B.

Which rocks contain fossils?

• igneous

• metamorphic

• marble

• sedimentary

Carbon 14 would be useful in determining the age of

• precambrian rocks

• small materials

• young rocks

• young organic (living) remains

Which radioactive substance would probably be used in dating the recent remains of a plant found in sedimentary deposits?

• carbon-14

• rubidium-87

• potassium-40

• uranium-238