Basics of Environmental Science

124 / Basics of Environmental Science million years ago, during the Silurian Period, but most dates from the Carboniferous, abou ...

Physical Resources / 125 A slope mine approaches the seam through an angled shaft and a drift mine approaches horizontally. Wher ...

126 / Basics of Environmental Science of it exported. Coal is plentiful, but clearly not inexhaustible, and it might have occurr ...

Physical Resources / 127 It has been found in continental permafrost regions and in the oceans at all latitudes. Methane has bee ...

128 / Basics of Environmental Science Steam-driven turbines generate the electrical power and nuclear reactors produce the heat ...

Physical Resources / 129 They are then sent for reprocessing. This operation separates fuel that can be used from the waste, inc ...

130 / Basics of Environmental Science Coolant water then came into contact with hot fuel, producing steam that reacted with the ...

Physical Resources / 131 Most modern quarries and open-cast mines are very large and, because they exist to detach and remove ro ...

132 / Basics of Environmental Science Mineral processing begins with separation of the ore mineral from the crushed rock. If the ...

Physical Resources / 133 Figure 3.19 A, Blast furnace. B, Steel converter ...

134 / Basics of Environmental Science Pollution is only one concern arising from our use of metals; the other centres on fears o ...

Physical Resources / 135 End of chapter points for discussion Can shortages of water be remedied by desalination? What are the d ...

136 / Basics of Environmental Science ——. 1993a. Elements: Earth. Facts on File, New York. ——. 1995. Facing the Future. Bloomsbu ...