Earth's mantle ________
A) is located in Pangaea
B) is formed by plate boundaries
C) is composed of molten metals
D) is the outermost part of the earth's crust
E) surrounds the core as a thick, elastic rock formation
E
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The North Pole has a higher noon Sun angle than New York City on this date
A) September 21 B) March 21 C) June 21 D) none of these
The banning of TV set and computer disposal in landfills by 35 states in the U.S. is expected to
a. cause interstate smuggling of e-waste b. be regulated by the federal government c. be voted down by consumers during the next general election d. set the stage for an emerging highly profitable e-recycling industry e. none of these answers
Which statement about the stream cross-sectional velocity is true?
A. Velocity is highest in the center where friction is lowest. B. Velocity is highest in the center where friction is highest. C. Velocity is lowest in the center where friction is lowest. D. Velocity is lowest in the center where friction is highest.
Permeability describes how rapidly water moves through a rock.
Answer the following statement true (T) or false (F)