In addition to sand moving along shore, how is beach sand permanently lost to the beach system?
What will be an ideal response?
ANSWER: Nature gets rid of some of it. Some is blown inland to form sand dunes, especially in areas without coastal cliffs. Other processes can permanently remove sand from the system. Some is beaten down to finer grains in the surf and then washed out to deeper water. Rip currents form when waves carry more water onshore than returns in the swash. That current flows back offshore in an intermittent stream that carries some of the beach sand back into deeper water. Huge storms such as hurricanes carry large amounts of sand far offshore. Some sand drifts into inlets that cross barrier islands, where dredges remove it to keep the inlets open for boat traffic. Some migrates along coasts for a few hundred kilometers until it encounters the deeper water of a submarine canyon that extends offshore from an onshore valley.?
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tectonics. a. Pangaea d. Cynognathus b. Gondwana e. Curie point c. Glossopteris flora
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A) dispersion B) diffraction C) refraction D) reflection
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Answer the following statement true (T) or false (F)