GEOG 1220 Lecture Notes - Lecture 3: Acid Rain, Plutonium-239, Heavy Metals
1 Feb 2015
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Week 3 & 4 physical processes and models. The physical spheres and life: atmosphere, hydrosphere, lithosphere. Creation of the earth"s environment: the distance the earth is from the sun, abundant water, oxygen rich environment. Interaction between a car and the lithosphere: you have to extract the materials for the car from the lithosphere (aluminum etc. , roads. How have humans modified circulation of the hydrosphere: dryland ranching in tropical forests. Intensive cropping (orange groves, sod farms, market crops, hay) in deserts: human modification of 1) evaporation 2) precipitation and 3) runoff, factors that influence evaporation, factors that influence precipitation, factors that influence the rate of runoff: Global circulation of the lithosphere: lithospheric circulation. Destructive processes: weathering (cid:224) disintegration (breaks down) or decomposition (changes its, erosion (cid:224) the transfer of weathered remains (moving the disintegrated rock chemicals) of rock somewhere else) Spatial scale in physical systems: large (global, small (local) Temporal scale in physical systems: long-term, short-term.
