1. Chapter 15 & 16 Review

2. Question # 1 The rock and other material that a stream carries is known as its ….. Stream load

3. Question # 2 If a river’s load and discharge increased … then the river’s erosive power would decease or increase? Increase

4. Question # 3 If precipitation exceeds evapotranspiration, then this will form? A river system

5. Question # 4 What are braided streams? A stream that has multiple channels divided by sediment bars.

6. Question # 5 What’s a disadvantage of living in a floodplain? Property damage due to flooding.

7. Question # 6 What do we call a human-built structure that helps to control flooding? An artificial levee

8. Question # 7 Which of the following is true of all lakes: most are located at low altitudes most last a long time in geologic terms most are short-lived in geologic terms Most are short-lived in geologic terms

9. Question # 8 What’s a watershed? the area drained by a river system

10. Question # 9 Streams that feed into another stream or lake are known as…. Tributaries

11. Question # 10 True of False --- the faster the river, the faster it erodes its channels. True

12. Question # 11 Water collecting in a depression is the early step in forming what? A lake

13. Question # 12 True or False --- load, discharge, and sediment are factors that widen and deepen a river channel. False --- load, discharge, and gradient

14. Question # 13 Soil conservation is an indirect or direct method of flood control? Indirect

15. Question # 14 What is the difference between a delta and an alluvial fan? a delta forms in water, and an alluvial fan forms on land.

16. Question # 15 What is the zone of saturation? The layer of an aquifer in which the pore space is completely filled with water.

17. Question # 16 What’s a spring? A natural flow of groundwater to the surface

18. Question # 17 A sloping layer of permeable rock sandwiched between 2 layers of impermeable rock & exposed at the surface is called? Artesian formation

19. Question # 18 What’s a stalactite? A cone-shaped deposit of calcite in the ceiling of a cave.

20. Question # 19 Where does karst topography form? both dry & wet areas

21. Question # 20 What is a recharge zone? the area where water from the surface can move through permeable rock to reach an aquifer.