ENCYCLOPEDIA OF ENVIRONMENTAL SCIENCE AND ENGINEERING - THE TERRESTRIAL SYSTEM pptx

... a system. A system subdivides universe into all the universe outside the system (macrocosm) and all the rest of the uni- verse which is inside the system (microcosm) with the excep- tion of the ... behavior of a minimum of known parts often makes possible the discovery of the values of the remaining parts as does the known sum of the angles...

Ngày tải lên: 10/08/2014, 20:20

... pheasants) and the “spe- cialist” seed-eating finches and sparrows, the fruit-eating parrots, and the nectar-sucking hummingbirds, and among land mollusks, such as the “garden” snails and slugs. ... and energy equivalence, of the quantity of herbivorous ani- mals present or produced over a period of time, the ener- getic cost of producing and maintaining th...

Ngày tải lên: 10/08/2014, 20:20

... excavation of the fossil beds may have deprived the landowners of the most profitable use of their land, but did not prohibit all uses of the land consis- tent with the protection of the fossil ... and Wildlife, and the Bureau of Land Management of the United States Department of the Interior, the Corps of Engineers of the United States Army of...

Ngày tải lên: 10/08/2014, 20:20

... tdv (23) The first term on the right-hand side represents the rate of formation of particles of volume v due to coagulation, and the second term that rate of loss of particles of volume v ... hundreds of miles of tiny capillaries. Oxygen is added to and carbon diox- ide is removed from the blood through the walls of these capil- laries. The transfer...

Ngày tải lên: 01/04/2014, 11:44

... of the lakes and 8 percent of the streams are chronically acidic. Florida has the highest per- centage of acidic surface waters (23 percent of the lakes and 39 percent of the streams). In the ... is pri- marily the result of long-range transport of pollutants from the heavily industrialized areas of northern Europe. The rain and snow in portions of...

Ngày tải lên: 10/08/2014, 20:20

... is affected by the size, shape and refractive index of the particles and by the wavelength, intensity, polar- ization and scattering angle of the incident light. The theory of light scattering ... tdv (23) The first term on the right-hand side represents the rate of formation of particles of volume v due to coagulation, and the second term that rate...

Ngày tải lên: 10/08/2014, 20:20

... purchase, the packaging of articles they choose, and the type and cost of the fuels they use—choices they may be reluc- tant to make, even if they will improve the quality of their air environment. ... effectiveness of the controls, and the quality of the surveillance instituted to ensure the continued proper use and maintenance of the con- trols. A fa...

Ngày tải lên: 10/08/2014, 20:20

... additional rise, σ is the standard deviation of the distribution of concentration in the y and z -direction, respec- tively, and V is the wind speed, assumed constant. Q is the amount of contaminant ... understand the distribution of contaminants; only then it is possible to determine the most economical strategy to reduce the pollution, and to evaluate the...

Ngày tải lên: 10/08/2014, 20:20

... vegetation and animal. It is introduced into the body with the intake of water and in air. Most lead air pollution is in the form of aerosols, fume, and sprays. The largest use of lead 39% of the ... borne into the atmosphere. 2. The physical state of the pollutant. 3. The molecular composition of the pollutants. 4. The nature of the proble...

Ngày tải lên: 10/08/2014, 20:20

... their flora and fauna become those of vernal ponds. In examining some aspects of the productivity of these five lakes, the variation in both the intensity of photosyn- thesis and the depth to ... of the minimum as rigidly as some have interpreted it, and we can best envision nutrient limitation from the standpoint of the balance and interac- tions of...

Ngày tải lên: 10/08/2014, 20:20