ENGR 202 Study Guide - Midterm Guide: Half-Life, Nitrous Oxide, Chemical Oxygen Demand

167 views13 pages

Document Summary

Engineers are primarily involved in problems related to technology development and deployment. Smoke: gases from burning of carbons matter, organic matter, wood, coal. It"s one small region of the spectrum, where relatively little absorption occurs. Midterm 2: what is the relationship between environmental engineering and. Gaseous sulfur dioxide emitted from chimneys of coal-burning plants is partially converted to fine sulfate particles by chemical processes in the atmosphere. This mix of sulfurous gases and particles leads to acid rain, which can damage lakes and forests hundreds of miles away: name an environmental impact and benefit for each of the following energy sources: Solar benefit: co(cid:374)side(cid:396)ed a(cid:373)o(cid:374)g the (cid:449)o(cid:396)ld"s clea(cid:374)est e(cid:374)e(cid:396)g(cid:455) fo(cid:396)(cid:373). Environmental impact: the massive amount of electricity used in solar plants causes some harmful emissions in the air. Biomass benefit: biomass fuels produce virtually no sulfur emissions, and help mitigate acid rain. Environmental impact: contributes to some emissions of greenhouse gases.