List and describe the three basic types of seafloor sediments. Give at least one example of each
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Terrigenous "derived from land" sediment consists primarily of mineral grains that were weathered from continental rocks and transported to the ocean, such as example, the abyssal clay layer that forms in the deep ocean. Biogenous "derived from organisms" sediment consists of shells and skeletons of marine animals and algae; the most common biogenous sediment is calcareous ooze. Hydrogenous "derived from water" sediment consists of minerals that crystallize directly from seawater through various chemical reactions, such as manganese nodules, which are rounded, hard lumps of manganese, iron, and other metals that precipitate in concentric layers around a central object.
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All of the following are considered to be biological hazards except
a. viruses b. parasites c. diet d. bacteria e. fungi
About one-fourth of the hurricanes that strike the United States produce tornadoes. Where do these tornadoes most often form in relation to the hurricane?
The lithosphere consists of ________
A) soils and vegetation B) the uppermost mantle and the continental and oceanic crust C) the upper part of the asthenosphere D) the upper mantle and core E) magma and molten metal
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