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Choose and environmental issue to research from the list of potential topics given below, and write a one page memo that includes the following: 1.A clear definition of the problem. 2.If possible, a photo or sketch. 3.Discussion of the issue, potential features to consider include, if appropriate: Affected areas ( local, region, continent, global), Causes, sources, Effects (human, animal, vegetation, climate), Prevention or reversal options (including feasibility and cost), Important legislation ( or lack thereof). 4.A bibliography with at least three distinct entries. All may be online references, but no more than one may be Wikipedia or similar sites.. Your memo should contain correct grammar, spelling and punctuation and should not exceed one page. List of potential topics: 1.Acid rain. 2.Air purification. 3.Bioremediaon. 4.Clean air act. 5.Clean water act. 6.Deforesation. 7.Erosion control. 8.Groundwater pollution. 9.Kyoto Protocol. 10.Lake eutrophication. 11.Loss of wetland. 12.Ocean acidification. 13.Purification of drinking water. 14.Solar energy. 15.Wind energy.
The overpass structure is to be level, centered 26 feet above the railroad, and 180 feet long. How much existing highway (in feet) must be reconstructed to provide appropriate vertical alignment
The following data represents, in square meters, the cross-sectional areas along a short portion of highway. Calculate the net volume of earthworks needed or available over the portion of the highway.
A 6ft wide, 10ft high vertical rectangular gate has its top edge 6ft below the water level. it is hinged along its lower edge. what force, acting on the top edge, is necessary to hold the gate shut
A hawk flying at 2 m/s at an altitude of 45 m accidentally drops its prey. The parabolic trajectory of the falling prey is described by the equation below until it hits the ground, where y is its height above the ground and x is its horizontal dis..
An aeration system with a hydraulic retention time of 2.5 hours receives a flow of 0.2 MGD with BOD concentration of 150 mg/L. The suspended solids concentration in the aeration basin is
The United States Environmental Protection Agency (EPA) has published the following data for municipal solid waste generation (in millions of tons). Estimate a value of MSW generation in the year 2025.
A force is specified by the vector F= 120i-160j+80k lb. Calculate the angles made by F with the positive x-,y-, and z- axes.
A 600 MW power plant has an efficiency of 36 percent with 15 percent of the waste heat being released to the atmosphere as stack heat and the other 85 percent taken away in the cooling water.
A canal was constructed running parallel to a river 1500 ft away. Both fully penetrate a sand aquifer with a hydraulic conductivity of 1.2 ft/d. The area is subject to rainfall of 1.8 ft/y and evaporation of 1.3 ft/y.
A tank operated as a CFSTR used to remove benzene from a flow stream is 1500 m3 in size. The flow rate in and out of the tank is 8 m3/day. If the influent benzene concentration of 265 ug/L and the effluent concentration is 12 ug/L
A jet aircraft flies at a speed of 600 mph at an altitude of 40,000 ft. The atmosphere is the standard atmosphere. (1) What is the air pressure outside the aircraft (2) What is the Mach number of the flow around the aircraft
over the range of cylindrical parts manufactured on a computer-controlled lathe, the standard deviation of the diameters is 0.002 millimeter/ (a) what does Chebyshe's theorem tell us about the probability
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