GEOG 106 Lecture Notes - Lecture 19: Novel Ecosystem, Lower Paleolithic, Geosphere
Document Summary
Negative: output of one-type acts as input that moves the system in the opposite direction. The input and output neutralize each other"s effects, stabilizing the system. Positive: output of one type acts as input that moves the system in the same direction. The input and output drive the system further toward one extreme or another. Rare in nature, common in natural systems that have been altered impact. System moves in opposing directions at equivalent rates so that their effects balance out. Geosphere (liphsopere) rock + sediments beneath our feet. Cryosphere frozen parts of the hydrosphere. Anthrosphere (technosphere) part of the environment that is built to modify humans. Characteristics not evident in the components alone. The whole is the sum of its parts . A tree- if you just look at its componets like branches + leaves you wont be able to see its emergent properties like being a home for birds etc. St lawrence system is connected with great lakes.
