ENV100Y5 Lecture : Lectures 34 & 35 - Freshwater Systems & Water Resources.docx
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ENV100Y5 Full Course Notes
Verified Note
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Lectures #34 & 35 - freshwater systems & water resources. We are not the only planet that has water but the only planet that has water in abundance. Makes earth different from all other planets! (water in abundance). Exists in all 3 states (vapour, liquid, solid) Important in moving heat from equator to the poles. Water on surface: ocean currents, carrier for many substances. Water is locked up in minerals in the earth"s mantle: makes the mantle elastic; affects the dynamics of plate tectonics, contributes to the mantle elasticity. Mantle is very hot water is in a vaporous form: water is ubiquitous & water has a dynamic component which affects the movement of organisms. Study of water in the hydrosphere, both on and under the ground: movement, distribution, quantity, quality study the impact on humans, reservoirs, processes, ecosystems. Water is abundant on earth, but drinkable water is rare: managing freshwater systems involves maintaining:
