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A collection of islands in a sea.
A vast, contiguous body of salt water covering more than 70% of the Earth's surface area
The totality of the liquid water that covers 71 percent of the Earth's surface as oceans, lakes, rivers, and streams. The _________ also includes groundwater, water that circulates below the Earth's surface in the upper part of the lithosphere.
The imaginary circle around the Earth halfway between the geographic poles
A natural watercourse, usually freshwater, that flows towards an ocean, sea, lake, another river, or in some cases into the ground.
An area of diminished precipitation on the lee (downwind) side of a mountain or mountain range
The breaking of rocks into smaller rocks, gradually becoming soil.
The scientific study of the lands, features, inhabitants, and phenomena of Earth.