Oceanography Exam 2

Question 1 of 14

1

What is bathymetry?

Select one of the following:

discovery and study of the ocean floor contours
study of ocean chemical composition
study of ocean basins
study to fin the best bath bomb

Explanation

Question 2 of 14

1

Select from the dropdown lists to complete the text.

Bathymetry started with the ( Greeks, Romans, Chinese ), then technology leaped forward with the echo depth sounder in the ( 1900's, 1800's, 1700's ).
The first comprehensive charts of the ocean floor were completed in ( 1959, 1979, 1899, 2009 ).

Explanation

Question 3 of 14

1

What is used to measure ocean depth?

Select one of the following:

an echo sounder
a UV beamer
satellites
lasers

Explanation

Question 4 of 14

1

How are satellites used in bathymetry?

Select one of the following:

They measure variations in surface elevation (sea surface height).
They measure variations in ocean depth (ocean floor height).
They make the figures brightly colored and pretty.
They provide wifi for the boats using echo sounders.

Explanation

Question 5 of 14

1

Select from the dropdown lists to complete the text.

Echo sounders send a pulse of sound every ( 10, 20 ) seconds. ( 121, 171 ) beams radiate from the ship's hull and cover a ( 120, 160 )-degree arc. Echo sounders provide swath coverage.

Explanation

Question 6 of 14

1

Select from the dropdown lists to complete the text.

Satellites bounce ( 1000, 100 ) pulses of radar energy off the ocean surface every ( second, minute ).

Explanation

Question 7 of 14

1

More than half of Earth's solid surface is at least 3,000 meters (10,000 ft) below sea level.

Select one of the following:

True
False

Explanation

Question 8 of 14

1

What is the average depth of the ocean? Average elevation of the continents?

Select one of the following:

12,430 ft / 2,760 ft
2,760 ft / 2,760 ft
3,546 ft / 1,670 ft
10,430 ft / 1,760 ft

Explanation

Question 9 of 14

1

❌: the submerged outer edge of a continent
❌: the deep seafloor beyond the continental margin
❌: submarine mountain range

Drag and drop to complete the text.

Continental Margins

Ocean Basin

Mid-Atlantic Ridge

Explanation

Question 10 of 14

1

❌: the submerged outer edge of a continent
❌: the deep seafloor beyond the continental margin
❌: submarine mountain range

Drag and drop to complete the text.

Continental Margins

Ocean Basin

Mid-Atlantic Ridge

Explanation

Question 11 of 14

1

Label the parts of the chart:

Drag an answer into the correct orange point.

Oceanic crust

Continental Crust

Oceanic ridges

Volcanic island arcs, trenches, etc.

Ocean basin floors

Continental Rise

Continental shelves and slopes

Continental lowlands

Continental Mountains

Explanation

Question 12 of 14

1

Check all that apply to passive continental margins:

Select one or more of the following:

diverging plates
litle earthquake and volcanic activity
surround Atlantic
converging plates
lots of earthquake and volcanic activity
prevalent in Pacific

Explanation

Question 13 of 14

1

Check all that apply to active continental margins:

Select one or more of the following:

lots of earthquakes and volcanic activity
prevalent in Pacific
converging plates
diverging plates
little earthquake and volcantic activity
surround Atlantic

Explanation

Question 14 of 14

1

❌: shallow, flat, close to shore
❌: steeply sloped, seaward
❌: apron of sediment that blends the margin into the deep ocean basin

Drag and drop to complete the text.

Continental shelf

Continental slope

Continental rise

	Created by Jo O'Bar over 5 years ago

Study guide for Oceanography Exam 2 at UWF. Covers marine provinces, sediments, seawater, ocean chemistry, atmospheric circulation, and oceanic circulation.

Oceanography Exam 2

Question 1 of 14

What is bathymetry?

Select one of the following:

Explanation

Question 2 of 14

Select from the dropdown lists to complete the text.

Explanation

Question 3 of 14

What is used to measure ocean depth?

Select one of the following:

Explanation

Question 4 of 14

How are satellites used in bathymetry?

Select one of the following:

Explanation

Question 5 of 14

Select from the dropdown lists to complete the text.

Echo sounders send a pulse of sound every 10 20( 10, 20 ) seconds. 121 171( 121, 171 ) beams radiate from the ship's hull and cover a 120 160( 120, 160 )-degree arc. Echo sounders provide swath coverage.

Explanation

Question 6 of 14

Select from the dropdown lists to complete the text.

Satellites bounce 1000 100( 1000, 100 ) pulses of radar energy off the ocean surface every second minute( second, minute ).

Explanation

Question 7 of 14

More than half of Earth's solid surface is at least 3,000 meters (10,000 ft) below sea level.

Select one of the following:

Explanation

Question 8 of 14

What is the average depth of the ocean? Average elevation of the continents?

Select one of the following:

Explanation

Question 9 of 14

❌: the submerged outer edge of a continent ❌: the deep seafloor beyond the continental margin ❌: submarine mountain range

Drag and drop to complete the text.

Explanation

Question 10 of 14

❌: the submerged outer edge of a continent ❌: the deep seafloor beyond the continental margin ❌: submarine mountain range

Drag and drop to complete the text.

Explanation

Question 11 of 14

Label the parts of the chart:

Drag an answer into the correct orange point.

Explanation

Question 12 of 14

Check all that apply to passive continental margins:

Select one or more of the following:

Explanation

Question 13 of 14

Check all that apply to active continental margins:

Select one or more of the following:

Explanation

Question 14 of 14

❌: shallow, flat, close to shore ❌: steeply sloped, seaward ❌: apron of sediment that blends the margin into the deep ocean basin

Drag and drop to complete the text.

Explanation

Echo sounders send a pulse of sound every ( 10, 20 ) seconds. ( 121, 171 ) beams radiate from the ship's hull and cover a ( 120, 160 )-degree arc. Echo sounders provide swath coverage.

Satellites bounce ( 1000, 100 ) pulses of radar energy off the ocean surface every ( second, minute ).

❌: the submerged outer edge of a continent
❌: the deep seafloor beyond the continental margin
❌: submarine mountain range

❌: the submerged outer edge of a continent
❌: the deep seafloor beyond the continental margin
❌: submarine mountain range

❌: shallow, flat, close to shore
❌: steeply sloped, seaward
❌: apron of sediment that blends the margin into the deep ocean basin