Answer :
A(n) Submerging coast forms when it is inundated by shallow seas, and a(n) emergent coast forms when a formerly submerged part of the continental shelf is exposed as dry land.
Submerging Coasts are those that have been inundated by ocean waters as a result of a localized rise in sea level. Examples of subsiding coasts that are noteworthy and instructive include: Western Norway is famous for its numerous fjords, which were formed as a result of the LGP's sea level increase. The estuaries of the Narmada and Tapti Rivers are part of the Indian subcontinent's Western Coastal Plains. California's west coast, for instance. With both seacliffs, headlands, and marine terraces (emergent), as well as bays and estuaries filling flooded river valleys, San Diego's coastline exhibits traits of both emergent and submergent coastlines (submergent). Flooded river mouths, fjords, barrier islands, lagoons, estuaries, bays, tidal flats, and tidal currents are characteristics of submergent coasts. River mouths around submerged shores, like Chesapeake Bay, are inundated by the rising water. A section of the landmass in western coastal plains has submerged due to subsidence along a fault line. Along with hastening the loss of land, coastal submergence results in saline water seeping into coastal aquifers and rivers that flow into estuaries. Submergence also alters groundwater levels, alters surface drainage patterns, and makes even regions above sea level poorly drain and pond water.
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