The San Andreas fault in California is thought to be a boundary of two plates
a. that are separating from one another.
b. where one is pushing over the top of the other.
c. that are sliding horizontally past one another.
d. that are basically at rest.
c
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Which compound has three hydroxyl groups?
a. Ethylene glycol b. Ethanol c. Cholesterol d. Glycerol
On a PV diagram, what kind of process is represented by a vertical line with an arrow pointing downward?
A. Isothermal expansion B. Isobaric compression C. Isothermal compression D. Adiabatic process E. Isobaric expansion F. Isochoric process
Two harmonic waves are described by 
What is the frequency (in Hz) of the resultant wave?
A. 300 B. 48 C. 8 D. 0.8 E. 150
What kind of light can be detected from an airplane but not from the ground?
A) most infrared light B) only the shortest-wavelength infrared light C) radio waves D) x-rays