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The Ocean as a Habitat

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