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Transcript
Oceanography
Unit 1
THE SEA FLOOR
Unit Summary Questions
Name
1.
Period
The major basins of the world ocean are the
, and
,
,
. The ocean around Antarctica is sometimes
called the
2.
The
of a substance is calculated by dividing its mass by its
volume.
3.
The four main divisions of the earth’s interior are the
, the
4.
5.
, the
, and the crust.
A long chain of submarine volcanic mountains that runs through the world ocean is
called the
system.
Sea floor is created at
and destroyed at
.
6.
In the process of
7.
A single supercontinent called
continents about
8.
a lithospheric plate descends into the
.
began to break up into the present day
years ago.
The two most abundant types of marine sediment are
which comes from rocks, and
sediment,
sediment, which is produced by
organisms.
9.
The continental margins consist of the
, the continental
slope, and the
.
10. Most of the deep sea floor, or
, is between
meters deep.
Unit 1 – The Sea Floor
1
and