CK12 Earth Science

Image Sources

(1) USDA.http://commons.wikimedia.org/wiki/Image:Hazardous-pesticide.jpg.

Public Domain.

(2) EPA.http://en.wikipedia.org/wiki/File:Love_Canal_protest.jpg. Public

Domain.

(3) http://commons.wikimedia.org/wiki/Image:Tamoil_station_Pijnacker.jpg.

GNU-FDL.

(4) http://commons.wikimedia.org/wiki/Image:Tagebau01.jpg. GNU-FDL.

(5) USGS.

http://commons.wikimedia.org/wiki/Image:Mercury_fremont_ice_core.png.

Public Domain.

(6) http://commons.wikimedia.org/wiki/File:

Industrial_Wasteland_As_Parking_Lots.jpgg. Public Domain.

(7) http://commons.wikimedia.org/wiki/File:Fuel_Barrels.JPG. CC-BY-SA 2.5.

(8) NOAA.http://en.wikipedia.org/wiki/Image:Wea01422.jpg. Public Domain.

(9) http://commons.wikimedia.org/wiki/File:Exploitation_forestiere.JPG.

GNU-FDL.

(10) http://en.wikipedia.org/wiki/Image:Map_of_Great_Plains.svg. Public
Domain.

(11) http://commons.wikimedia.org/wiki/Image:Sheep_and_goats.jpg. Public
Domain.

(12) USDA.http://commons.wikimedia.org/wiki/File:TerracesBuffers.JPG. Public
Domain.