What are the basic differences between the disciplines of physical and historical
geology?
A) Physical geology is the study of fossils and sequences of rock strata; historical
geology is the study of how rocks and minerals were used in the past.
B) Historical geology involves the study of rock strata, fossils, and geologic events,
utilizing the geologic time scale as a reference; physical geology includes the study of
how rocks form and of how erosion shapes the land surface.
C) Physical geology involves the study of rock strata, fossils, and deposition in relation
to plate movements in the geologic past; historical geology charts how and where the
plates were moving in the past.
D) none of the abovephysical geology and historical geology are essentially the same.
The most abundant salt in seawater is ________.
A) KCl
B) MgCl2
C) NaCl
D) SiO2