7. The Mid-Atlantic Ridge is a prime example of (a) centrifical effects of the e

Question

7. The Mid-Atlantic Ridge is a prime example of (a) centrifical effects of the earth's rotation, (b) paleomagnetism, c) subduction zones rising magma, (d) sea-floor spreading by a divergent plate boundary 8. The shaping of the continental shelves especially the Atlantic Shelf of of Long Island, were mostly influenced by (a) transform plate boundaries, (b). uniformitarianism principles, (c) glacial periods around 18-20,000 ybp, or (d) none of the above. 9 True or False: The settling velocity of particles is principally determined by the size of sedimentgrains as well as a function of energy in the environment such as currents and upwellings. 10. The worlds estuaries trap sediments by (a) slowing down the flow of water along the coast1ine, (b) accumulating sediment, silts and clays by marsh vegetation, (c) creating barrier islands associated with littoral currents, (d) all of the above.

Explanation / Answer

7) (d) sea floor spreading by a divergent plate boundary it's the longest mountain chains on earth

8) (c) glacial period during 18-20,000 ybp long island were formed by the glacial history of the kame and terminal moraines deposition which were formed by the advance and retreat of two ice sheets glaciers

9)true

10) all of above

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