Oceanography Exam 2

Descripción

Study guide for Oceanography Exam 2 at UWF. Covers marine provinces, sediments, seawater, ocean chemistry, atmospheric circulation, and oceanic circulation.
Jo O'Bar
Test por Jo O'Bar, actualizado hace más de 1 año
Jo O'Bar
Creado por Jo O'Bar hace alrededor de 6 años
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Resumen del Recurso

Pregunta 1

Pregunta
What is bathymetry?
Respuesta
  • discovery and study of the ocean floor contours
  • study of ocean chemical composition
  • study of ocean basins
  • study to fin the best bath bomb

Pregunta 2

Pregunta
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].
Respuesta
  • Greeks
  • Romans
  • Chinese
  • 1900's
  • 1800's
  • 1700's
  • 1959
  • 1979
  • 1899
  • 2009

Pregunta 3

Pregunta
What is used to measure ocean depth?
Respuesta
  • an echo sounder
  • a UV beamer
  • satellites
  • lasers

Pregunta 4

Pregunta
How are satellites used in bathymetry?
Respuesta
  • 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.

Pregunta 5

Pregunta
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.
Respuesta
  • 10
  • 20
  • 121
  • 171
  • 120
  • 160

Pregunta 6

Pregunta
Satellites bounce [blank_start]1000[blank_end] pulses of radar energy off the ocean surface every [blank_start]second[blank_end].
Respuesta
  • 1000
  • 100
  • second
  • minute

Pregunta 7

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

Pregunta 8

Pregunta
What is the average depth of the ocean? Average elevation of the continents?
Respuesta
  • 12,430 ft / 2,760 ft
  • 2,760 ft / 2,760 ft
  • 3,546 ft / 1,670 ft
  • 10,430 ft / 1,760 ft

Pregunta 9

Pregunta
[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
Respuesta
  • Continental Margins
  • Ocean Basin
  • Mid-Atlantic Ridge

Pregunta 10

Pregunta
[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
Respuesta
  • Continental Margins
  • Ocean Basin
  • Mid-Atlantic Ridge

Pregunta 11

Pregunta
Label the parts of the chart:
Respuesta
  • Oceanic crust
  • Continental Crust
  • Oceanic ridges
  • Volcanic island arcs, trenches, etc.
  • Ocean basin floors
  • Continental Rise
  • Continental shelves and slopes
  • Continental lowlands
  • Continental Mountains

Pregunta 12

Pregunta
Check all that apply to passive continental margins:
Respuesta
  • diverging plates
  • litle earthquake and volcanic activity
  • surround Atlantic
  • converging plates
  • lots of earthquake and volcanic activity
  • prevalent in Pacific

Pregunta 13

Pregunta
Check all that apply to active continental margins:
Respuesta
  • lots of earthquakes and volcanic activity
  • prevalent in Pacific
  • converging plates
  • diverging plates
  • little earthquake and volcantic activity
  • surround Atlantic

Pregunta 14

Pregunta
[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
Respuesta
  • Continental shelf
  • Continental slope
  • Continental rise
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