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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.
Under the 200% DB depreciation, what is the cumulative depreciation through the end of year four? The useful life of the mixing tank is 9.5 years.
An earthquake with a magnitude 6.5 on the Richter scale is producing a ground displacement of 50 mm at a particular location and the energy released by the earthquake is "E".
Select the number and size of reinforcing bars required to resist a total factored moment of 180 ft. kips for a rectangular section with b = 12 in., d = 19.5 in., h = 24 in., f'c = 4 ksi, and fy = 60 ksi.
Cylindrical, steel bar stock (density = 7833 kg/m3, Cp = 0.465 kJ/(kg C)) of 10-cm diameter is heat-treated by drawing it at a velocity of 3 m/min through a 6-m-long furnace maintained at 900C.
Estimate the stopping distance required traveling northbound along University Drive towards campus assuming you are traveling at 40 mph under normal conditions.
Estimate the power needed to overcome the aerodynamic drag of a person who runs at a rate of 100 yds in 10 s in still air. repeat the calculations if the race is run into a 20-mph headwind: a 20-mph tail wind.
A 9,000-lb single wheel load is placed on a PCC slab that is 9.5 in. thick. The concrete has a modulus of elasticity of 5 million psi with a Poisson's ratio of 0.15. The modulus of subgrade reaction is 225 pci.
it is required to dewater a construction site 80 m by 80 m. the bottom of the construction will be 1.5 m below the
A rectangular gate is inclined at an angle of 30 degrees from the horizontal. It is 4 ft wide by 6 feet long. If it is hung from its upper end which is 8 feet below the waters top edge, what minimum applied force (bottom) is needed to open the gat..
What is your best estimate of the true value of the angle? Give your answer to 1 decimal place of a second.
What are the SPCS83 coordinates and convergence angle for a station in the Colorado Central zone with geodetic coordinates of 39° 44' 40.74141"N, 105° 00' 07.48466"W
Calculate the percipitable water (mm) in a 10-km high standard atmoshperic column if the surface conditions are temperature=20 degrees C, pressure=101.3 kPa and the laspe rate is 6.5 degrees C/km.
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