Unit 6 Hydrology Quiz 1- DO NOT WRITE YOUR NAME ON THIS ipad#______________ 1. Which of the following best describes Earth’s water budget? a. Precipitation is greater than evaporation b. Evaporation is greater than precipitation c. Precipitation equals evaporation d. Precipitation is less than evaporation 2. On average, how many gallons of water does each person in the United States use every day? a. 280 gallons b. 80 gallons c. 18 gallons d. 180 gallons 3. What uses the most water in the United States? a. Showers and Toilets b. Dishwashers and Sprinklers c. Agriculture and Industry d. Schools and Restaurants 4. Which of the following processes involves the process of removing salt from saline water? a. Antisalting b. Desalination c. Desanitation d. Saltrification 5. Which of the following describes local water budgets? a. not balanced b. balanced c. excess d. shortage 6. Which of following can be used to calculate a water budget? a. Evaporation - Precipitation= Water Budget b. Precipitation- Evaporation= Water Budget c. Evaporation + Precipitation= Water Budget d. Precipitation x Evaporation= Water Budget Use the diagram to the right to answer questions 7-11 7. What does letter A represent in the diagram? a. Divide b. Headwater c. Tributary d. Mouth e. Main Stream 8. What does letter B represent in the diagram? a. Divide b. Headwater c. Tributary d. Mouth e. Main Stream A E C D B 9. What does letter C represent in the diagram? a. Divide b. Headwater c. Tributary d. Mouth e. Main Stream 10. What does letter D represent in the diagram? a. Divide b. Headwater c. Tributary d. Mouth e. Main Stream 11. What does letter E represent in the diagram? a. Divide b. Headwater c. Tributary d. Mouth e. Main Stream 12. If you were to examine the profile of a typical stream, you would probably find that the gradient is______ a. steepest near the mouth b. steepest near the head c. about the same at both the head and the mouth d. gentler near the head 13. The suspended load of a stream ____. a. is deposited before the bed load b. consists primarily of highly soluble substances c. moves along the bottom of the channel by rolling or sliding d. usually consists of fine sand, silt, and clay-sized particles 14. The flat portion of a valley floor adjacent to a stream channel is called a ____. a. floodplain c. divide b. meander d. Tributary 15. A drainage basin is ____. a. b. c. d. the channel of a stream the land covered by floodwaters the land area that contributes water to a stream all streams that flow directly into an ocean 16. Which of the following statements is true about discharge in a stream? a. volume increases between the source and mouth b. volume decreases between the source and mouth c. volume is equal between the source and mouth d. none of the above 17. Which stream load type is deposited first? a. suspended load b. bed load c. dissolved load d. all of the above 18. Which type of deposit is displayed in the picture to the right? a. Delta b. Natural Levee c. Floodplain d. Alluvial Fan 19. What is the name of a feeder stream that flows into a mainstream? a. Headwater b. Mouth c. Tributary d. Reservoir ? 20. A depositional feature that forms where a stream enters water is called a a. natural levee. b. meander. c. delta. d. distributary 21. Most streams carry the lightest part of their load____________. a. as dissolved material. b. on their surface. c. as bed load. d. in suspension. 22. The ability of a channel to erode and transport material depends largely on its a. width. b. density. c. velocity. d. length. 23. What is best the way to make sure we have water in the future? a. b. c. d. Take shorter showers Wash fewer loads of laundry Removal of salt water All of the above 24. Where is most freshwater on Earth located? a. b. c. d. Groundwater Icecaps and Glaciers Soil and Atmosphere Oceans 25. In a water budget, which of the following represents income? a. b. c. d. Evaporation Shortage Runoff Precipitation