Water: The flow of technology.
Katherine
K
Bourzac
D057914:Agricultural Irrigation / Q000295:instrumentation / Q000379:methods* / Q000639:trends; D002140:California; D003247:Conservation of Natural Resources / Q000379:methods / Q000639:trends; D005523:Food Supply; D005843:Geography; D060587:Groundwater / Q000032:analysis*; D013472:Sunlight; D014881:Water Supply / Q000032:analysis / Q000706:statistics & numerical data*