Need answers for the following oceanography study questions, Please provide accurate answers
- 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
- 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.
- Sand grains are __________ particles of gravel.
larger than the same size as smaller than
- 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
- The most common rocks composing Earth's crust are igneous and they are made up of mostly __________ minerals.
carbonate ferromagnesian feldspar silicate clay
- Most biogenous sediments are made up of __________.
calcium carbonate or silica clay water feldspar None of the above is correct.
- The rate at which calcium carbonate materials dissolve in seawater __________ with __________ water temperature.
increases. . . . .falling increases. . . . .rising decreases. . . . .falling
- The driving force for turbidity currents is ________.
astronomical tides glacial ice rising sea level gravity
- 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
- 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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