Introducing Earth and Its Resources

Which part of Earth contains most of its mass?

• the biosphere

• the atmosphere

• the hydrosphere

• the geosphere

Which part of Earth contains plates?

• hydrosphere

• atmosphere

• core

• lithosphere

True or False: The upper layer of Earth is broken into more than a dozen continents that move very slowly in various directions.

• True

• False

True or False: Mantle material rises in convection currents because heated materials become more dense.

• True

• False

True or False:To study Earth’s interior, geologists often rely on indirect methods, such as evidence from fossils.

• True

• False

_________________ is the transfer of energy that is carried in rays like light.

• Radiation

• Convection

• Conduction

• Erosion

_________________ is the transfer of heat between two objects that are touching.

• Radiation

• Convection

• Conduction

• Superposition

_________________ is the heat transfer by the movement of fluid.

• Radiation

• Convection

• Conduction

• Deposition

Using data from seismic waves, geologists have learned that Earth’s interior is made up of several

• continents

• layers.

• trenches

• ridges.

Holes drilled several kilometers into Earth’s crust provide direct evidence about Earth’s interior in the form of

• seismic waves.

• rock samples.

• liquid iron.

• volcanic eruption.