Title: Unit 10 Quiz
Course: BIS 105 Environmental Biology > Section: BIS 105 Environmental Biology

Q: A(n) _______ aquifer tends to be more susceptible to contamination.
- confined
- unconfined
- depleted
- nonconsumptive
- consumptive
A: unconfined

Q: If water is withdrawn from an aquifer faster than the recharge rate,
- surface water will stop percolating downward.
- wetlands will flood.
- the water table will rise.
- a contamination plume will form.
- sinkholes may form.
A: sinkholes may form.

Q: Much of the "biosolids" material that is the end product of a water treatment plant is ________.
- used as crop fertilizer in the United States.
- loaded onto barges and sent to underdeveloped countries to use as fertilizer
- placed in deep injection wells to keep it out of the water table
- stored in biohazard pits
A: used as crop fertilizer in the United States.

Q: Discuss the environmental, quality and economic issues associated with the manufacture and consumption of bottled water.

Q: We build dams to do all of the following except ________.
- ease irrigation
- improve habitat for native fish
- prevent floods
- provide drinking water
- generate electricity
A: improve habitat for native fish

Q: The dead zone in the Gulf of Mexico is primarily the result of
- industrial pollution by oil refineries in the New Orleans region.
- a natural cycle related to cold ocean currents.
- point sources of pollutants.
- nonpoint sources of pollutants.
- sharks eating all the other organisms.
A: nonpoint sources of pollutants.

Q: You want to maintain a healthy pond at your school site. Last year another pond became eutrophic; to avoid that, you want to ________.
- increase the phosphorus in the pond
- increase the carbon-based fertilizers in the pond
- decrease the calcium available in the deep water
- avoid using chemical fertilizers in the pond's watershed
- provide nitrogen for good nutrient mixing along the bottom of the pond
A: avoid using chemical fertilizers in the pond's watershed

Q: The largest reserves of fresh water on Earth are found in
- polar ice caps and glaciers.
- aquifers.
- rivers and groundwater.
- lakes and wetlands.
- oceans.
A: polar ice caps and glaciers.

Q: Humans use freshwater primarily for ________.
- washing and home use
- electrical production
- mining and industrial processes
- drinking and cooking
- agricultural irrigation
A: agricultural irrigation

Q: What percentage of the world population does not have access to an improved sanitation system?
- 5%
- 10%
- 20%
- 40%
- 60%
A: 40%

Q: A septic system is ________.
- a toxic or badly polluted waterway
- a second level mechanism to remove bacteria at a wastewater treatment plant
- a small scale method of treating wastewater, often used in rural settings
- a wastewater treatment plant which is contaminated and overloaded
- the use of natural wetlands to cleanse wastewater
A: a small scale method of treating wastewater, often used in rural settings

Q: If you collect a jar of muddy water from a puddle or ditch, and then let the mud settle out over many hours, you have separated much of the mud from the water using a process very much like the
- bar screen in a wastewater facility.
- primary treatment in a wastewater facility.
- secondary treatment in a wastewater facility.
- tertiary treatment in a wastewater facility.
A: primary treatment in a wastewater facility.

Q: Define water pollution, point source, and nonpoint source pollution. Which of the two (point source or nonpoint source) is easier to identify? Which is easier to legislate? Which currently poses the greatest threat to freshwater?

Q: The upper boundary of a water bearing layer of rock or gravel is called:
- an artesian well.
- the water table.
- an aquifer recharge zone.
- subsidence.
- a confined aquifer.
A: the water table.

Q: What percentage of the world population does not have access to an improved drinking water source?
- 3%
- 13%
- 25%
- 32%
- 40%
A: 13%