Principles of Environmental Science

William P. Cunningham, University of Minnesota
Mary Ann Cunningham, Vassar College

Water: Resources and Pollution

Multiple Choice Quiz


1	Choose the correct sequence of soil-water layers beginning from the soil surface.
		A)	zone of aeration, water table, zone of saturation
		B)	water table, zone of aeration, zone of saturation
		C)	aquifer, recharge zone, water table
		D)	zone of saturation, water table, zone of aeration


2	Renewable water supplies are
		A)	greater in developed nations.
		B)	soil layers filled with water.
		C)	most plentiful in the tropics.
		D)	increased with evapotranspiration.


3	What is the name of the water body that underlies eight midwestern states and is being withdrawn from faster than it is being recharged?
		A)	Pasig River
		B)	Lake superior
		C)	Ogallala Aquifer
		D)	Glen Canyon


4	Which of the following dams rests on an active fault and is in fear of causing a major earthquake?
		A)	Boulder Dam
		B)	Three Gorges Dam
		C)	Hetch Hetchy Dam
		D)	Aswan High Dam


5	The addition of sewage and other organic material into a water supply
		A)	increases oxygen consumption by decomposers.
		B)	increases biological oxygen demand.
		C)	causes an oxygen sag downstream.
		D)	all of the above.
		E)	b and c are correct.


6	In which type of sewage treatment is natural or artificial wetlands used to process wastes?
		A)	tertiary treatment
		B)	low-cost alternative treatment
		C)	secondary treatment
		D)	remediation


7	Which act of legislation sets safety standards for community water supplies?
		A)	Clean Water Act
		B)	Federal Water Pollution Control Act
		C)	Safe Drinking Water act
		D)	Toxic Substances Control Act

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