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Lithosphere Biosphere
HydrosphereAtmosphere
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The Four Great Realms: The natural systems encountered in physical geography operate within the four great realms, or spheres, of the Earth. These are the atmosphere; the lithosphere, the hydrosphere, and the biosphere.
Atmosphere - The gaseous layer that surrounds the Earth. It receives heat and moisture from the surface and redistributes them, returning some heat and all of the moisture to the surface. It supplies vital elements needed to sustain life forms.
Lithosphere - This outermost solid layer of the Earth provides a platform for most life-forms. The solid bedrock bears a shallow layer of soil in which nutrient elements become available to organisms. The surface of the lithosphere is sculpted into landforms which provide varied habitats for plants, animals, and humans.
The 4 types of realms
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Hydrosphere - The liquid realm of the Earth is principally the mass of water in the world’s oceans. It also includes solid ice in mountain and continental glaciers. Water occurs as a gaseous vapor, liquid droplets, and solid ice crystals. In the lithosphere, water is found in the uppermost layers in soils and in ground water reservoirs.
Biosphere - Most of the biosphere is contained in the shallow surface zone called the life layer. It includes the surface of the lands and the upper 100 meters of the ocean. On land, the life layer is the zone of interactions among the biosphere, lithosphere, and atmosphere.
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The Four Great Realms
Lithosphere - All processes associated with the solid earthHydrosphere - All processes associated with waterAtmosphere - All processes associated with the gases that envelope the earthBiosphere - All processes that involve living organisms
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The _____ layers surround the earth This outermost ____ of the Earth
provides a platform for most life forms The ____ realm of the Earth is principally
the mass of water in the world’s oceans. Most of the biosphere is contained in the
shallow surface zone called the______
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Gaseous layer Solid layers Liquid Life layers
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Gems core values With which gems core values can you relate
this presentation Growing by learning Leading through innovation Global citizen ship Pursuing excellence
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