Define "pressure," "stress," and "strain." How do they relate to one another?
What will be an ideal response?
Pressure and stress are defined as the magnitude of a force divided by the area of the surface on which the force is applied.
Normal stress is the force applied perpendicular to a surface. Shear stress is the force applied parallel to the surface.
Pressure increases with increasing force exerted by the weight of overlying rock, at depth, and where force is equal in all three dimensions. A special type of normal stress.
Strain is the deformation of rock as a result of applied stress.
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Which type of radiation is being emitted in the following incomplete nuclear equation:
Pb ? 
Bi + ??
A. gamma B. beta C. alpha D. A and B E. none of the above
What was the policy of the former Soviet Union (USSR) regarding religion within its borders?
A) The USSR permitted freedom of religion for Christians, but not for Jews or Muslims. B) The USSR was tolerant of all religious practices. C) The USSR severely discouraged and even persecuted religious practice. D) The USSR established Russian Orthodox Christianity as the official state religion. E) The USSR had no policy regarding religion.
Everything else being equal, which of the following will most likely result from a gradual increase in global CO2?
A. a decrease in evaporation from the Earth's oceans B. no change in global climate C. an increase in surface air temperature D. a marked decrease in plant growth
The fact that Venus and Mars both have mountain ranges and volcanoes demonstrates that ____.
Fill in the blank(s) with the appropriate word(s)