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The 4 Spheres of Earth
Hydrosphere
Includes all water at or near Earth’s surface
Includes:
-
liquid and frozen surface water
Ex. rivers, lakes, oceans, glaciers, etc.
-
groundwater (water underground)
atmospheric water (evaporated water)
Atmosphere
The gas and aerosol (microscopic liquid and solid particles like soot, dust, chemicals
etc.) layer that surrounds Earth extending from the ocean and land out to space.
Geosphere
The rocks and minerals on Earth
Includes:
-
The molten rock in the interior of the earth
Earth’s solid outer crust
Non biotic parts of the soil
Biosphere
The thin layer on Earth’s surface where life can be found and supported.
-
Extends from the deep ocean to a few kilometers into the atmosphere
Includes biotic components (living) and abiotic components (non-living) which
help support living organisms
How Wolves Changed a River
https://www.youtube.com/watch?v=ysa5OBhXz-Q&index=3&list=PLiZ5Jx0en6PlNp8zIm5cbT4Obo_wcpkY