Which resource is NOT renewable? 

A)  trees in a forest 
B)  oil 
C)  fertile soil 
D)  groundwater

Which of the following is true about where earthquakes occur?

A) Earthquakes are randomly distributed across most of Earth.
B) Earthquakes mostly occur away from plate boundaries.
C) Deep and intermediate-depth earthquakes occur near subduction zones.
D) Deep earthquakes are most common near rising mantle plumes.

Cations have loaned out electrons and so have a:

A) Positive charge
B) Negative charge
C) Neutral charge

Graphic warnings on cigarette packages and the banning of smoking in public places have failed to reduce the incidence of cigarette smoking.

Sedimentary clasts are:

A) loose fragments of rocks and minerals
B) deposits of sand in a lens shape
C) small sedimentary basins along a river or stream

The fact that increased rates of skin cancer may not become apparent until 15 to 40 years after ozone depletion has occurred illustrates the concept of lag time.

Which species would be affected by the fragmentation of tropical forests? 

A)  raccoons 
B)  cowbirds 
C)  migrating songbirds 
D)  skunks

Which letter in the diagram corresponds to the layer that comprises all of the Earth's ecosystems?

The amount of sediment carried by a stream is the:

A) sediment load
B) suspended load
C) saltation load
D) traction load