ENVB 210- Midterm Exam Guide - Comprehensive Notes for the exam ( 42 pages long!)
16 Feb 2018
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They are essential and regulated by the ecosystem. E(cid:395)uest(cid:396)ate (cid:272)a(cid:396)(cid:271)o(cid:374) (cid:894) (cid:862)(cid:272)a(cid:396)(cid:271)o(cid:374) si(cid:374)k(cid:863)(cid:895) + sou(cid:396)(cid:272)e of (cid:272)a(cid:396)(cid:271)o(cid:374) co2 gas exchange. Purify/store water (+ flood regulator): muck soils can hold 800x their weight in water. Soils are a living body: they can evolve, degrade. Swamp lands have been cultivated or lost most rivers have waterfront property. The (cid:449)ate(cid:396) (cid:272)ould(cid:374)"t i(cid:374)filt(cid:396)ate the soil flood. ( the more rain that infiltrates the soil the less runoff ) The effects of the geological processes we had before in north america define the landscapes we have now. Mountains: igneous intrusions ( montroyal: magma pool underground ) After glaciers retreat champlain sea ( deposition of clay ) Weathering physical disintegration and chemical decomposition of rocks: physical disintegration. Exfoliation: bedrock rises to the surface (erosion of surrounding material). The decrease of the pressure when exposed to the surface the bedrock starts to peel / separate. Water comes in the cracks + freeze further disintegration: biochemical decomposition.
