The four main spheres of Earth are the _____. cryosphere, hydrosphere, biosphere, and atmosphere atmosphere, hydrosphere, anthrosphere, and atmosphere astrosphere, hydrosphere, lithosphere, and biosphere atmosphere, hydrosphere, lithosphere, and biosphere

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The four main spheres are: Biosphere: the organic matter and the living organisms including humans and animals Athmosphere: the air and the gasses that surround the Earth - including the air we breathe Lithosphere: the rocks of the planet and finally, the last one: Hydrosphere: the water systems of Earth.

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