geosphere - earth, biosphere - all living things, hydrosphere - water, atmosphere - air and space, freshwater - water in our lakes and rivers, saltwater - this is found in our oceans and has the largest percentage of earth's water, cryosphere - the frozen part of the biosphere, oxygen - a gas found in the atmosphere, rocks - found in the geosphere, humans - part of the biosphere,

Interaction of the Spheres

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