Quiz-4

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University of Minnesota-Twin Cities *

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3301

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Geography

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Oct 30, 2023

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docx

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Question 1 Correct Grade 1.00 out of 1.00 Flag question Question text According to Dr. Boulay, a water footprint can be used to judge the superiority of a product, from an environmental perspective. Select one: True False Feedback For this, one would need to use LCA, of which water footprint is only a subset. The correct answer is 'False'. Question 2 Correct Grade 1.00 out of 1.00 Flag question Question text Dr. Boulay used the example of an electric car to show that the reduced emissions of the electric car make it the best choice for those who wish to reduce their environmental impact. Select one: True

False Feedback The example was used to show that when the total life cycle is considered, the electric car might not be better than the alternative, because reduced emissions from the car may be offset by increased emissions created to produce the electricity in the first place. The correct answer is 'False'. Question 3 Correct Grade 1.00 out of 1.00 Flag question Question text Dr. Boulay used the mobile phone example to show: Select one: a. Water footprint allows one to choose a superior product b. Choices can be difficult, despite having environmental impact data c. One should consider multiple factors when choosing a product d. Price shouldn't affect one's choice of a product Feedback Your answer is correct. The correct answers are: Choices can be difficult, despite having environmental impact data, One should consider multiple factors when choosing a product Question 4 Correct Grade 1.00 out of 1.00

Flag question Question text Water footprint is primarily a measure of impacts on water quality Select one: True False Feedback The correct answer is 'False'. Question 5 Correct Grade 1.00 out of 1.00 Flag question Question text One swimming pool contains about 2500 m 3 A cubic kilometer contains about how many Olympic swimming pools of water? Select one: a. 25,000 b. 800,000 c. 200,00 d. 400,000 Feedback

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Your answer is correct. The correct answer is: 400,000 Question 6 Correct Grade 1.00 out of 1.00 Flag question Question text By some estimates, using data on your mobile device requires up to 200 liters of water per GB of data consumed. Select one: True False Feedback The BBC article explains that 200 liters might be the max, but that it could be as little as 1 liter. Regardless, how many of us think about the water consumed by our data use? The correct answer is 'True'. Question 7 Correct Grade 1.00 out of 1.00 Flag question Question text Dr. Boulay mentions that world water crises are more a result of bad water management than an absolute shortage of water. Which of the following is not a supporting reason for this statement?

Select one: a. Humans only use 3% of the total rainfall that falls on the world's land surface b. climate change is making water supply more variable c. 1 of 6 people lack access to safe drinking water d. 3900 children die every day from water borne diseases Feedback Your answer is correct. The correct answer is: climate change is making water supply more variable Question 8 Correct Grade 1.00 out of 1.00 Flag question Question text Dr. Kate Brauman stated that water depletion primarily happens in dry areas. Select one: True False Feedback The correct answer is 'False'. Question 9 Correct Grade 1.00 out of 1.00

Flag question Question text How many people worldwide depend to some extent, on desalinated water to meet their water needs? Select one: a. 300,000 b. 3 billion c. 30,000 d. 300 million Feedback Your answer is correct. 300 million people in 150 countries depend on more than 17,000 desalination plants! The correct answer is: 300 million Question 10 Complete Grade 1.00 out of 1.00 Flag question Question text What is "hidden" water? "hidden water" refers to the water that makes up the many products. Comments

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Comment: Question 11 Correct Grade 1.00 out of 1.00 Flag question Question text The term "hidden water" refers to water vapor, because it is invisible. Select one: True False Feedback Although water vapor is invisible, in this case, "hidden water" refers to the water that makes up the many products and foods that we use every day! The correct answer is 'False'. Question 12 Correct Grade 1.00 out of 1.00 Flag question Question text Green, Blue, Grey, and Clear Water are components of a water footprint. Select one: True

False Feedback "Clear" water does not belong in the list! The correct answer is 'False'. Question 13 Correct Grade 1.00 out of 1.00 Flag question Question text A water footprint is a subset of Life Cycle Assessment, which is focussed on the potential impacts of a product on water resources. Select one: True False Feedback The correct answer is 'True'. Question 14 Correct Grade 1.00 out of 1.00 Flag question

Question text Life Cycle Assessment, or LCA is a methodology to quantify the potential environmental impact of the entire life cycle of a product. Select one: True False Feedback The correct answer is 'True'. Question 15 Complete Grade 1.00 out of 1.00 Flag question Question text How does the inverted ketchup bottle potentially reduce environmental impact? It reduces the amount of food waste (less ketchup left in the bottle), thereby reducing its impact on the environment. Comments Comment: Question 16 Correct Grade 1.00 out of 1.00 Flag question

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Question text Dr Brauman discusses where water goes when we water plants. Some if it is lost in the ground, some if it is taken up to build plant material, etc. Where does most of the water typically go? Select one: a. it runs off b. it is transpired back to the atmosphere c. it is intercepted and trapped on the leaves' surface d. It is stored in the plant tissue Feedback Your answer is correct. The correct answer is: it is transpired back to the atmosphere Question 17 Correct Grade 1.00 out of 1.00 Flag question Question text Dr. Brauman stated that "water stress" is not the same thing as "water scarcity". Select one: True False Feedback Many factors, biophysical, social, political, and other factors, contribute to water stress, whereas water scarcity is more of a biophysical problem. The correct answer is 'True'.

Question 18 Correct Grade 1.00 out of 1.00 Flag question Question text Dr. Brauman's map of global water depletion showed us that the most severe and widespread areas of water depletion occur along the equator (0 degrees latitude). Select one: True False Feedback Her map showed that the bulk of the water depletion areas are mostly mid-latitute areas, across the Earth. The correct answer is 'False'. Question 19 Correct Grade 1.00 out of 1.00 Flag question Question text Dr. Kate Brauman stated that it is difficult to know precisely how much water there is globally, because (select both correct answers for full points): Select one or more: a. Streamflow measurements are sparse, globally

b. It's difficult to get good flow measurements on larger rivers because of flow variation. c. Because there is so little liquid water on Earth d. Because water is always moving from place to place Feedback Your answer is correct. The correct answers are: Streamflow measurements are sparse, globally, It's difficult to get good flow measurements on larger rivers because of flow variation. Question 20 Correct Grade 1.00 out of 1.00 Flag question Question text Dr. Brauman stated that water conflicts don't just happen where water is scarce: there are myriad important factors in water conflicts. Select one: True False Feedback The correct answer is 'True'. Question 21 Correct Grade 1.00 out of 1.00

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Flag question Question text It is said that 13 gallons per day is the minimum amount of water needed for drinking, cooking, bathing, and sanitation. On the average in the U.S., how much more than this amount do we use? Select one: a. 1/3 to 1/2 this amount (4-6.5 gal) b. This is the amount we use in the U.S. c. 100 to 150 times this amount (1300-1950 gal) d. 5 to 6 times this amount (65-78 gal) Feedback Your answer is correct. The correct answer is: 5 to 6 times this amount (65-78 gal) Question 22 Correct Grade 1.00 out of 1.00 Flag question Question text Dr. Brauman stated that globally, "big" water users typically are regions that use irrigation. Select one: True False Feedback

The correct answer is 'True'.