Which of the following is NOT evidence of recent activity at a volcano?

A) Thick, well-developed soil
B) Layer of ash blanketing hillslopes
C) Unweathered lava flows
D) Ash flows lacking a well-developed soil

What is included in all organic compounds? 

A)  cadmium 
B)  hydrocarbons 
C)  hydro-oxygens 
D)  carbon dioxide

The thermohaline conveyor is important in the North Pacific because:

A) it warms the coast of Alaska, allowing longer growing seasons
B) it brings deep nutrient-rich water to the surface
C) it decreases surface water temperatures, preventing hurricanes
D) it brings warmer water deep into the Pacific basin, recharging nutrients

What is ejecta? 

A)  It is the material released from rifts on the floor of the ocean. 
B)  It is a substance injected into faults to relieve pressure. 
C)  It is the depressed region inside the cone of an inactive volcano. 
D)  It is the debris released from a volcano.

Which of the following is NOT a possible reason for why a region is higher in elevation than adjacent regions?

A) the lithosphere is hotter
B) it has continental crust, but adjacent regions have oceanic crust
C) the crust is thicker
D) the crust is more dense

In which of the following ways may earthquakes be generated within a continental plate?

A) Intrusions of magma
B) Continental rifting and normal faulting
C) Transform faults
D) Movement of preexisting faults subjected to new stress
E) All of these