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(solution) Need answers for the following oceanography study questions,


Need answers for the following oceanography study questions, Please provide accurate answers


  1. Low-lying flat areas that are either saturated by water or covered by water for at least part of the year are known as __________.
    barrier islands
    deltas
    wetlands
    levees

2 points   


QUESTION 2
  1. Turbidity currents __________.
    have been known to cut telegraph cables on the sea floor
    can flow relatively long distances
    are sufficiently powerful to erode submarine canyons on the continental slope
    are denser than sea water
    All of the above are correct.

2 points   


QUESTION 3
  1. Sand grains are __________ particles of gravel.
    larger than
    the same size as
    smaller than

2 points   


QUESTION 4
  1. The oldest sediments on the ocean floor are found __________.
    at spreading centers
    near divergent plate boundaries
    near the edge of ocean basins and away from spreading centers
    where sediment deposits are thinnest
    overlying the youngest oceanic crust

2 points   


QUESTION 5
  1. The most common rocks composing Earth's crust are igneous and they are made up of mostly __________ minerals.
    carbonate
    ferromagnesian
    feldspar
    silicate
    clay

2 points   


QUESTION 6
  1. Most biogenous sediments are made up of __________.
    calcium carbonate or silica
    clay
    water
    feldspar
    None of the above is correct.

2 points   


QUESTION 7
  1. The rate at which calcium carbonate materials dissolve in seawater __________ with __________ water temperature.
    increases. . . . .falling
    increases. . . . .rising
    decreases. . . . .falling

2 points   


QUESTION 8
  1. The driving force for turbidity currents is ________.
    astronomical tides
    glacial ice
    rising sea level
    gravity

2 points   


QUESTION 9
  1. Typical rate of accumulation of sediments on the continental shelf and slope range around ________ in 1000 years.
    0.5-1 cm
    2-5 cm
    10-40 cm
    2-4 m
    12 m

2 points   


QUESTION 10
  1. Manganese nodules are marine sediments that are __________.
    chemically precipitated from sea water
    found on ocean bottoms far from shore, away from lithogenous sedimentation
    found under relatively unproductive regions so biogenous sedimentation is low
    found in all the ocean basins except the Arctic Ocean
    All of the above are correct.

 


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Sep 13, 2020

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