Which of the following creates a major problem for scientists studying a particular cycle of glaciation?
a. subsequent glaciation
b. changes in sea level
c. human activity
d. changes in wind direction
a
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The mass number of an atom is equal to the sum of the
A. neutrons and isotopes. B. neutrons and electrons. C. neutrons and protons. D. protons, neutrons, and electrons. E. protons only.
Compare and contrast the three major types of plate tectonic boundaries. Discuss the tectonic features along each of
these boundaries. Provide specific examples of each type of boundary. What will be an ideal response?
Loess is important because it:
a. is an important source of building material. b. is rich in important ore deposits. c. sometimes contains petroleum. d. makes fertile soil. e. is an important source of groundw
Narrow surface currents that flow in the same general direction as the approaching waves are:a
rip currents. b. nearshore currents. c. longshore currents. d. upwelling currents. e. refraction currents