TSES 3002 2022 Participation Week 11 Questions and Answers - Merge TSES3002A_TSES3002V [15354_15355]

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Biology

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Apr 3, 2024

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TSES 3002 2022 Participation Week 11 Questions and Answers Q1: What is the grey water footprint? (20 points) Ans: “the amount of fresh water required to assimilate pollutants to meet specific water quality standards. The grey water footprint considers point-source pollution discharged to a freshwater resource directly through a pipe or indirectly through runoff or leaching from the soil, impervious surfaces, or other diffuse sources.” (Water Footprint Network, n.d.) Q2: What impact does virtual water trade have on global water use? (20 points) Ans: There are global water savings when global virtual water imports are greater than global virtual water exports. There are global water losses when global virtual water exports exceed Global virtual water imports (Virtual Water Trade, n.d.) Q3: Climate change will produce changes in temperature and precipitation patterns. How will this affect crop production? (20 points) Ans: Climate change will affect crop production since different crops (C3, C4, CAM) have different photosynthesis efficiencies under different temperature and precipitation conditions. (Crops Review, 2021) Q4: What agricultural technology was at the heart of the Green Revolution? (20 points) Ans: Plant breeding (ndsubeancap, 2012) Q5: How does the Aral Sea situation relate to the Water, Food, Energy nexus? (20 points) Ans: The Aral Sea, once the 4" largest lake in the world, dried up nearly completely due to water diversion (required energy) from its source rivers for the purpose of irrigating cotton crops. The Aral Sea fisheries disappeared (loss of food) to produce a non-food crop. (CGTN, 2018) References CGTN. (2018, June 26). Assignment asia: Kazakhstan aral sea restoration. [Video]. Youtube. https://www.youtube.com/watch?v=f443KsQG Wg Crops Review. (2021, August 25). Types of photosynthesis: Summary comparison of C3, C4, and CAM. https://www.cropsreview.com/types-of-photosynthesis/ Ndsubeancap. (2012, January 28). Norman Borlaug & the green revolution. [Video]. Youtube. https://www.youtube.com/watch?v=Lg9-HTtgFOk Virtual Water Trade. (n.d.) Virtual Water Trade. Lecture 18 Virtual Water Trade link. Water Footprint Network. (n.d.). What is a water footprint? https://waterfootprint.org/en/water- footprint/what-is-water-footprint/
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