As Heezen and Tharp interpreted the ocean depth data, they identified what unusual feature that hinted at continental drift?
a) The oceanic ridges have a cleft, or rift, in the middle rather than a peak.
b) The oceanic ridges have a broad, flat top very much resembling a table top.
c) Ocean ridges are unique to the Pacific Ocean.
d) They discovered a chain of very tall volcanoes in the middle of the Atlantic Ocean that do not rise higher than the sea surface.
e) Ocean ridges abruptly stop after a few hundred kilometers and then start again after a few hundred more.
a) The oceanic ridges have a cleft, or rift, in the middle rather than a peak.
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What will be an ideal response?
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What will be an ideal response?
Urbanization is ________
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