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The Ocean as a Habitat

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Across
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The angular distance north or south of the equator
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Found in the upper atmosphere and absorbs much of the lethal UV radiation
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Geological processes that move crustal plates of the Earth (2 words)
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A global process of oceanic crust moving away from ridge and rise systems (2 words)
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Site of subduction of oceanic crust into the Earth's crust
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A marine division pertaining to the ocean's water column and the organisms that live there
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A marine zone; the vertical extent of the shoreline between high and low tide lines
Down
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An isolated undersea volcano that rises well above the seafloor but remains beneath the sea's surface
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The flat, sediment-covered floor of the ocean basin (2 words)
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A marine division pertaining to the seafloor and the organisms that live there
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A marine zone; the portion of the ocean where light penetrates to allow primary production (photosynthesis)
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The gradual movement of continents in response to seafloor spreading (2 words)
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Supercontinent that consisted of all present land masses
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The angular distance east or west of the Greenwich Prime Meridian
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A marine zone; the portion of the ocean where light does not penetrate, which prevents primary production