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ES Ch 19 Vocab

Glencoe Earth Science

AB
Gradually sloping end of a continent that extends beneath the oceanContinental shelf
Ocean basin feature that dips steeply down from the continental shelfContinental slope
Flat seafloor area from 4,000 m to 6,000 m below the ocean surface, formed by the deposition of sedimentsAbyssal plain
Area where new ocean floor is formed when lava erupts through cracks in Earth's crustMid-Ocean ridge
Long, narrow, steep-sided depression in the seafloor formed where one crustal plate sinks beneath anotherTrench
Food-making process using light energy from the Sun, carbon dioxide, and waterPhotosynthesis
Food-making process using sulfur or nitrogen compounds, rather than light energy from the Sun, that is used by bacteria living near hydrothermal ventsChemosynthesis
Marine organisms that drift in ocean currentsPlankton
Marine organisms that actively swim in the oceanNekton
Marine plants and animals that live on or in the ocean floorBenthos
Area where a river meets the ocean that contains a mixture of freshwater and ocean water and provides an important habitat to many marine organismsEstuary
Rigid, wave-resistant, ocean margin habitat built by corals from skeletal materials and calciumReef
Introduction of wastes to an environment, such as sewage and chemicals, that can damage organismsPollution


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