ENS FINAL EXAM QUESTIONS AND ANSWERS

ENS FINAL EXAM QUESTIONS AND ANSWERS A key characteristic of aquatic dead zones is ________. - Answer-a low concentration of oxygen Data indicate that the present rate of freshwater consumption in most developed countries is ________. - Answer-unsustainable Recent research that analyzed the content of commercial bottled water indicates that ________. - Answer-bottled water is no safer or purer than most samples of tap water All of the following are examples of point sources of pollution except ________. a large farma car repair shop dumping waste oil into the storm drainan overturned tanker truck that spills into a creeka factory discharging wastes into a lake through a large outleta sewer pipe - Answer-a large farm Humans use more fresh water for ________ than for any other purpose. - Answer-irrigating crops The exceptionally strong warming of the eastern Pacific is referred to as ________. - Answer-El Niño We build dams to ________. - Answer-generate electricity, prevent flooding, and provide irrigation and drinking water Why is grain production in the Great Plains considered largely unsustainable? - Answer-The Ogallala aquifer is being depleted for irrigation water. All new construction on campus must be: - Answer-LEED certified Which of the following are the purposes of the ponds on Elon's campus? - Answer-stormwater runoff/flood control, aesthetic, Irrigation water supply What is the area Elon plans to improve their sustainability in the most in the coming years? - Answer-Dining/food waste The most obvious cause of industrial smog is ________. - Answer-burning fossil fuels Ozone in the ________ is important for absorbing and scattering much of the UV radiation coming into Earth's atmosphere from the sun. - Answer-stratosphere What gas composes the largest portion of Earth's atmosphere? - Answer-nitrogen How is Collonades heated? - Answer-geothermal heat When coal or oil are burned, some part of it is completely combusted, forming CO2; another part is partially combusted, forming CO (carbon monoxide); and some remains unburned and is released as soot. Along with sulfur dioxide, these are the main components of ________. - Answer-industrial smog