Nuclear power supplies about ________ of all electricity in the United States
A) three-fourths
B) two-thirds
C) one-half
D) one-tenth
E) one-fifth
Answer: E
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If you pile up dry sand, it will always have a slope angle of about 35 degrees? What is this angle
called? a. dip slope b. dip angle c. angle of repose d. angle of inclination e. angle of declination
Briefly explain how magnetic reversals in oceanic crust and fossils in ocean sediments are used to
construct a magnetic time scale. What will be an ideal response?
Fossil evidence of the links among Gondwana continents was compelling because the species shouldhave:a
been found over wide regions if they were able to migrate among continents. b. exhibited evidence of tolerance for climatic extremes. c. shown a mechanism for widespread dispersal. d. been found over wide regions and shown a mechanism for widespread dispersal. e. been found over wide regions, exhibited evidence of tolerance for climatic extremes and shown a mechanism for widespread dispersal.
Since the 1970s, the mean global temperature has risen by about 0.6°C
Indicate whether the statement is true or false