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Earth Science CH2

Across
Gases that surround a planet.
Community of organisms.
Below the mantle.
The largest population environment can support.
Mostly solid and rocky part.
Consists of crust and upperpart of mantle.
Between the crust and core.
Down
"middle sphere"
Interacting components considered an entity.
The portion that is water.
Where life exists.
Plastic layer.
Outermost layer.
Diagram of feeding relationships.