15611207
Question 1
Question
What is bathymetry?
Answer
-
discovery and study of the ocean floor contours
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study of ocean chemical composition
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study of ocean basins
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study to fin the best bath bomb
Question 2
Question
Bathymetry started with the [blank_start]Greeks[blank_end], then technology leaped forward with the echo depth sounder in the [blank_start]1900's[blank_end].
The first comprehensive charts of the ocean floor were completed in [blank_start]1959[blank_end].
Answer
-
Greeks
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Romans
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Chinese
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1900's
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1800's
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1700's
-
1959
-
1979
-
1899
-
2009
Question 3
Question
What is used to measure ocean depth?
Answer
-
an echo sounder
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a UV beamer
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satellites
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lasers
Question 4
Question
How are satellites used in bathymetry?
Answer
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They measure variations in surface elevation (sea surface height).
-
They measure variations in ocean depth (ocean floor height).
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They make the figures brightly colored and pretty.
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They provide wifi for the boats using echo sounders.
Question 5
Question
Echo sounders send a pulse of sound every [blank_start]10[blank_end] seconds. [blank_start]121[blank_end] beams radiate from the ship's hull and cover a [blank_start]120[blank_end]-degree arc. Echo sounders provide swath coverage.
Answer
-
10
-
20
-
121
-
171
-
120
-
160
Question 6
Question
Satellites bounce [blank_start]1000[blank_end] pulses of radar energy off the ocean surface every [blank_start]second[blank_end].
Answer
-
1000
-
100
-
second
-
minute
Question 7
Question
More than half of Earth's solid surface is at least 3,000 meters (10,000 ft) below sea level.
Answer
- True
- False
Question 8
Question
What is the average depth of the ocean? Average elevation of the continents?
Answer
-
12,430 ft / 2,760 ft
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2,760 ft / 2,760 ft
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3,546 ft / 1,670 ft
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10,430 ft / 1,760 ft
Question 9
Question
[blank_start]Continental Margins[blank_end]: the submerged outer edge of a continent
[blank_start]Ocean Basin[blank_end]: the deep seafloor beyond the continental margin
[blank_start]Mid-Atlantic Ridge[blank_end]: submarine mountain range
Answer
-
Continental Margins
-
Ocean Basin
-
Mid-Atlantic Ridge
Question 10
Question
[blank_start]Continental Margins[blank_end]: the submerged outer edge of a continent
[blank_start]Ocean Basin[blank_end]: the deep seafloor beyond the continental margin
[blank_start]Mid-Atlantic Ridge[blank_end]: submarine mountain range
Answer
-
Continental Margins
-
Ocean Basin
-
Mid-Atlantic Ridge
Question 11
Answer
-
Oceanic crust
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Continental Crust
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Oceanic ridges
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Volcanic island arcs, trenches, etc.
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Ocean basin floors
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Continental Rise
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Continental shelves and slopes
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Continental lowlands
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Continental Mountains
Question 12
Question
Check all that apply to passive continental margins:
Answer
-
diverging plates
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litle earthquake and volcanic activity
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surround Atlantic
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converging plates
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lots of earthquake and volcanic activity
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prevalent in Pacific
Question 13
Question
Check all that apply to active continental margins:
Answer
-
lots of earthquakes and volcanic activity
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prevalent in Pacific
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converging plates
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diverging plates
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little earthquake and volcantic activity
-
surround Atlantic
Question 14
Question
[blank_start]Continental shelf[blank_end]: shallow, flat, close to shore
[blank_start]Continental slope[blank_end]: steeply sloped, seaward
[blank_start]Continental rise[blank_end]: apron of sediment that blends the margin into the deep ocean basin
Answer
-
Continental shelf
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Continental slope
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Continental rise
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