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Oceans and Seas 8C

Questions about currents, waves, and ocean structure

QuestionAnswer
What are the four major oceans? Pacific, Atlantic, Indian, and Arctic
What is a sea? A sea is a large body of saltwater partially enclosed by land.
What are the continental shelf, continental slope, and continental rise? The shelf is the submerged edge of a continent extending out some distance offshore. The slope is a steep drop off from the shelf to the ocean basin. The rise is the sea bottom at the foot of the continental slope made of sediment from the shelf.
What is an abyssal plain? A flat, deep, sea floor of an ocean.
What is the difference between fringing and barrier reefs? Fringing reefs are along the shore and barrier reefs are out in the sea.
What are two ways that minerals leave the ocean? Activity of living organisms and the removal and deposition of minerals on the sea floor
What causes tides? The main cause of tides is the pull of the moon's gravity, although the sun does play a small part in tidal movement.
What are the names of 1. the peak of a wave? 2. the lowest part of a wave? 3. vertical distance from a crest to the trough 4. the distance between crests? 5. water depth to which a wave disturbs? 1. Crest 2. Trough 3. Wave Height 4. Wavelength 5. Wave Base
What are sea caves, sea arches, stacks, spits, and hooks all caused by? Ocean Erosion
What are the two types of ocean currents and what causes them? Surface currents - caused by wind Subsurface currents - caused by friction with surface currents, flow-away from piled-up surface currents, and differences in salinity
What causes currents to rotate in circular patterns? Which way do they rotate in the North and South Hemispheres? The Coriolis Effect Clockwise in the North and counterclockwise in the South
What are three types of subsurface currents? Density currents, turbidity currents, and thermohaline currents
What is upwelling? The rising to the surface of cold, nutrient-rich water from the depths of the ocean
Created by: 1045580536
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