EVS 1101 Lecture Notes - Lecture 3: Persistent Organic Pollutant, Fragilaria, Lead
8 Feb 2016
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Some figures and tables in this chapter are taken from the personalized textbook environment (pearson) Arthur c. clarke: 70% of earth"s surface is covered with water. 70% of the earth"s surface is covered with water. 97. 5 % of water is in the oceans. Hydrologic cycle certain water of precipitation enters the soil = percolation. Should be able to know how to draw this with the ocean! http://www. ec. gc. ca/water/en/nature/prop/e_cycle. htm. Water usage: regions of the world with the smallest water resources per capita are. Asia, africa and europe, whereas america has the largest resources: north america consumes the most water per capita, whereas under- developed countries consume the least. In canada, water is mainly used by the industries (including the power plants), whereas in the u. s. , water is mainly used for irrigajon: canadians use 5. 4 billion m3/yr of water (surface and groundwaters) Groundwater supplies: groundwaters are used for domesjc purposes in rural areas (wells) Supplies 4% of canadians: pollujon can be a problem:
