1.) what type of matter and energy make up the geosphere?
a.) air; solar radiation, heat, movement
b.) solid rock; heat, radioactivity, gravity
c.) water; solar radiation, heat, movement
d.) living things; solar radiation, heat, movement

2.) which of the following is an example of the biosphere interacting with the atmosphere?

a.) a human breathing in and out
b.) a volcano adding ash to the air
c.) a rainstorm filling a stream over its banks
d.) a plant root cracking a rock in two.

3.) what are the two sources of earth’s internal heat energy?

a.) sunlight and radiation from space
b.) motion and other forms of kinetic energy
c.) cosmic rays and gravitational energy
d.) radioactive decay and heat of formation

4.) why must scientists infer the composition of earth’s layers?

a.) there is no evidence to support a theory.
b.) they cannot gather samples from the layers.
c.) scientists do not agree on the layers of earth.
d.) the layers vary from one part of earth to another.

5.) how are earth’s lithosphere and asthenosphere different from one another?

a.) they have different physical properties.
b.) they have different chemical composition.
c.) they were formed during different time periods
d.) the lithosphere does not allow seismic waves to travel through.