Geosphere

Science / Weather / Geosphere: Considered the solid portions of the earth, including the hydrosphere and the lithosphere, as opposed to the atmosphere, which lies above it. At their conjunction is the biosphere.

Biosphere

Science / Biology / Biosphere: All ecosystems on Earth as well as the Earths crust, waters, and atmosphere on and in which organisms exist; also, the sum of all living matter on Earth. MORE

Lithosphere

Science / Biology / Lithosphere: The solid outer layer of the Earth; includes both the land area and the land beneath the oceans and other water bodies. MORE

Hydrosphere

Science / Biology / Hydrosphere: The part of the physical environment that consists of all the liquid and solid water at or near the Earths surface. MORE

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