Quiz-10

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School

University of Minnesota-Twin Cities *

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3301

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Geography

Date

Oct 30, 2023

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docx

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Question 1 Incorrect Grade 0.00 out of 1.00 Flag question Question text Which waterbody is NOT protected by the Federal Clean Water Act? Select one: a. Oceans b. Rivers c. Wetlands d. Estuaries e. Lakes Feedback Your answer is incorrect. The correct answer is: Oceans Question 2 Incorrect Grade 0.00 out of 1.00 Flag question Question text Chlorophyll-a levels are associated with clear, high quality water Select one:

True False Feedback The correct answer is 'False'. Question 3 Correct Grade 1.00 out of 1.00 Flag question Question text Sediment is one of the primary stressors on water quality worldwide. Soil may be eroded via a number of physical processes and subsequently carried to streams degrading water quality and habitat. Match the following statements with the corresponding erosion processes and issues. soil erosion process that leads to the creation of a defined channel Answer 1 soil detachment process from fields that occurs in a flat, gradual flow Answer 2 conventional plowing has increased erosion rates 1 - 2 orders of magnitude over natural background levels Answer 3 Feedback Your answer is correct.

The correct answer is: soil erosion process that leads to the creation of a defined channel → gully erosion, soil detachment process from fields that occurs in a flat, gradual flow → sheet erosion, conventional plowing has increased erosion rates 1 - 2 orders of magnitude over natural background levels → effect of agriculture on erosion rates Question 4 Correct Grade 1.00 out of 1.00 Flag question Question text What does TED speaker, Dianna Cohen, suggest should be the 4th "R": Reduce -> Reuse -> Recycle -> ?? Select one: a. Rethink b. Reboot c. Refuse Refuse to buy things using single-use/disposable plastic d. Revisit Feedback Your answer is correct. The correct answer is: Refuse Question 5 Correct Grade 1.00 out of 1.00 Flag question Question text

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What did Dr. Deb Swackhamer mean by "contaminants of emerging concern"? Select one: a. Water contaminants that might be concern, once we know more. b. Water contaminants that we don't know about yet. c. Water contaminants that have emerged from water, to land. d. Water contaminants that are of concern, but are not regulated or controlled yet. Feedback Your answer is correct. The correct answer is: Water contaminants that are of concern, but are not regulated or controlled yet. Question 6 Correct Grade 1.00 out of 1.00 Flag question Question text What approximate percentage of U.S. plastics are recycled, according to TED speaker, Dianna Cohen? Select one: a. 7% b. 50% c. 90% Feedback Your answer is correct. The correct answer is: 7% Question 7

Incorrect Grade 0.00 out of 1.00 Flag question Question text Which of the following is not a problem caused by increasing impervious area in relation to how it affects stormwater runoff and streams? (select one) Select one: a. degradation of in-stream life such as invertebrates b. more industrial pollution from point-source pipes c. increased water velocity and erosion from runoff d. Increasing amounts of stormwater runoff Feedback Your answer is incorrect. The correct answer is: more industrial pollution from point-source pipes Question 8 Correct Grade 1.00 out of 1.00 Flag question Question text The acronym TMDL used in water quality stands for Total Maximum Daily Load. Select one: True False

Feedback The correct answer is 'True'. Question 9 Incorrect Grade 0.00 out of 1.00 Flag question Question text Jorgensensen's buffer capacity describes the ability of an ecosystem, such as a stream to bounce back from pressure or "forcing functions" on the habitat and aquatic life. Which of the following statements are not correct in relation to the buffer capacity? (check one) Select one: a. State variables are properties intrinsic to the definition of the described ecosystem. b. Increases in the forcing functions will lead to increased degradation of a river or stream c. Forcing functions in this context are features such as corn fields, roads or feedlots that may impact the aquatic environment. They may be managed to reduce impacts d. State variables can be managed or changed to improve the quality of a stream or river Feedback Your answer is incorrect. The correct answer is: State variables can be managed or changed to improve the quality of a stream or river Question 10 Incorrect Grade 0.00 out of 1.00

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Flag question Question text Nutrient levels are usually higher in north an northeastern Minnesota streams compared to the southern and western parts of the state. Select one: True False Feedback The correct answer is 'False'. Question 11 Correct Grade 1.00 out of 1.00 Flag question Question text Lake Erie was cleaned up substantially by the year 2000 since many efforts were made to reduce phosphorus from industrial pipe outlets and to eliminate it from many laundry detergents and soaps. However by the mid-2000s the algae blooms were coming back even more severely then they were in the late 1960s and 1970s. What is the main source of phosphorus draining into Lake Erie in the present day? Select one: a. wastewater treatment plant effluent b. power plant cooling water c. irrigation canals d. farms runoff, cattle feedlots and leaky septic systems

Feedback Your answer is correct. The correct answer is: farms runoff, cattle feedlots and leaky septic systems Question 12 Correct Grade 1.00 out of 1.00 Flag question Question text Dr. Hunt shows the most commonly used herbicides in the United States in her presentation. What is the ainflw most widely used herbicide in the U.S.? Select one: a. DDT b. copper sulfate c. atrazine d. glyphosphate Feedback Your answer is correct. The correct answer is: glyphosphate Question 13 Correct Grade 1.00 out of 1.00 Flag question Question text

Select the description below that best describes the objective of the Federal Clean Water Act: Select one: a. To restore and maintain the physical, biological, and chemical integrity of the nation's waters b. To restore and maintain the nation's freshwater c. To restore and maintain the biological, chemical, and spatial integrity of the nation's water d. To restore and maintain the physical, biological, and ethical integrity of the nation's water Feedback Your answer is correct. The correct answer is: To restore and maintain the physical, biological, and chemical integrity of the nation's waters Question 14 Correct Grade 1.00 out of 1.00 Flag question Question text The film, Troubled Waters: A Mississippi River Story, documents what about agricultural nutrient contributions to the Gulf of Mexico? Select one: a. Agriculture is the primary source of nutrient pollution to the Gulf of Mexico b. Agriculture is the only source of nutrient pollution to the Gulf of Mexico c. Agriculture is not a source of nutrient pollution to the Gulf of Mexico d. Agriculture is a small, but important source of nutrient pollution to the Gulf of Mexico Feedback Your answer is correct.

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The correct answer is: Agriculture is the primary source of nutrient pollution to the Gulf of Mexico Question 15 Correct Grade 1.00 out of 1.00 Flag question Question text To what famous creature is the following phrase attributed: They'll walk on their fins and get woefully weary, in search of some water that isn't so smeary. I hear things are just as bad up in Lake Erie!"? Select one: a. Nemo b. Sasquatch c. The Lorax d. Po (Kung Fu Panda) Feedback Your answer is correct. The correct answer is: The Lorax Question 16 Correct Grade 1.00 out of 1.00 Flag question Question text Match the term with its appropriate definition

Nonpoint source pollution Answer 1 Point source pollution Answer 2 Feedback Your answer is correct. The correct answer is: Nonpoint source pollution → generally results from land runoff, precipitation, atmospheric deposition, drainage, seepage, from many diffuse sources., Point source pollution → any single identifiable source of pollution from which pollutants are discharged, such as a pipe, ditch, ship or factory smokestack Question 17 Incorrect Grade 0.00 out of 1.00 Flag question Question text The Federal Clean Water Act does not regulate runoff from agricultural lands Select one: True False Feedback The correct answer is 'True'. Question 18 Correct

Grade 1.00 out of 1.00 Flag question Question text Rachel Carson's famous 1962 book, Silent Spring , spawned an environmental movement that led to the creation of what U.S. agency? Select one: a. The Nature Conservancy (TNC) b. The United Nations (UN) c. The Environmental Protection Agency (EPA) d. Agency for Homeland Security Feedback Your answer is correct. The correct answer is: The Environmental Protection Agency (EPA) Question 19 Complete Grade 0.00 out of 1.00 Flag question Question text What is the "bigger picture" that TED speaker, Dianna Cohen refers to in her TED talk? We need to find a way to turn off the faucet. Comments Comment:

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