Cross-shore currents, moving to/away from the shorelineLongshore currents, moving to/along the beachSwash zone, Section of the beach with uprush and backwash of wave-driven waterHigher waves =, higher swash and more backwashErosional shores, erosion forms the dominant landformsErosional shores, Often near tectonic activity and are well-developed cliffsDepositional shores –, sandy features and often formed by longshore driftTombolo-, Sand ridge connecting island/sea stack to mainland or two islandsOcean beach –, Closest part of the island to the oceanDune –, Stabilized by grasses; protect lagoon from strong stormsBarrier flat –, grassy area that forms behind dunesSalt marshes –, Inland of barrier flatCoastal plain estuary-, drowned river valleys formed due to deglaciation and rising sea levelsTectonic Estuary-, Faulted or folded area now flooded with oceanHow are tectonic estuaries formed?, Formed by subsidence or land cut off from the ocean by land movement associated with faulting, volcanoes, and landslides.Bar built estuary-, occur when sandbars or barrier islands are built up by ocean waves and currents along coastal areas fed by one or more rivers or streams.Fjord, Former glaciated valley now flooded with seawater. Usually has steep sides, rock bottoms, and underwater sillsMangroves, Type of coastal wetland that has salt-resistant mangrove trees, shrubs, and palms.At what latitude are mangroves generally located?, 30 degrees