A sperm whale uses its junk and the spermaceti organ to do which of the following?
A) Dig in seafloor sediment
B) Digest squid and other prey
C) Generate sounds
D) Produce offspring
E) Remain submerged for extended periods
C
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Several paper clips dangle from the north pole of a magnet. The induced pole in the bottom of the lowermost paper clip is a
A. south pole. B. north pole. C. either of these D. neither of these
Which of the numbered features is a pyroclastic flow?
A) 1
B) 2
C) 3
D) 4
E) 5
Temperatures in cities are higher as a result of
A) pavement and buildings storing heat during the day and releasing it at night. B) increased evapotranspiration in the city. C) greater insolation. D) increased number of trees.
The largest source of oil to the world ocean is through ____________. Fill in the blank(s) with the appropriate word(s)