GEF

Unit 5  |  Toward Sustainable Water Systems 144 ASSESS YOUR UNDERSTANDING 1. How much ultrapure water does the average semiconductor plant use every day? a. 1–2 million gallons b. 2–4 million gallons c. 4–6 million gallons d. 6–8 million gallons 2. Greywater is: a. Non-sewage waste water suitable for reuse in irrigation, flushing toilets, washing cars and other outdoor use b. Water derived from precipitation that is held in the soil and nourishes plants c. Water used to flush away human waste d. Surface water found in lakes, rivers, or wetlands 3. The era of global agricultural productivity resulting in dramatic rises in population and economic growth is called: a. Green Building b. Green Revolution c. Green Water d. Green Uprising 4. Drip irrigation is more efficient than surface irrigation. a. True b. False 5. Which of the following is a common water efficiency strategy in green building? a. Wood paneling b. Concrete design c. Green roofs d. Sump pumps 6. Social marketing campaigns can help increase water awareness and conservation. a. True b. False