Running Water & Groundwater (20 Pts)

PhySci 111 Quiz 5

NAME______Running Water & Groundwater (20 pts) 1. (2 pts) The vertical drop of a stream channel over a certain distance defines ______. a. discharge b. laminar flow c. runoff d. gradient e. alluvium

2. (2 pts) Which one of the following factors does NOT influence stream velocity? a. channel size and shape b. laminar flow c. discharge d. gradient e. channel roughness

3. (2 pts) If you were to examine the longitudinal profile of a typical river, you would probably find that ______. a. the gradient is steepest near the mouth b. the gradient is steepest near the head c. the gradient is about the same at both the head and the mouth d. none of these

4. (2 pts) At a bend in a river, the main erosion is ______. a. on the outside of the bend b. on the inside of the bend c. both outside and inside the bend d. at an oxbow lake

5. (2 pts) A natural levee is ______. a. an erosional feature b. a depositional feature c. essentially parallel to its stream channel d. an erosional feature, essentially parallel to the stream channel e. a depositional feature, essentially parallel to the stream channel

6. (2 pts) A river originates 200 meters above sea level and travels 400 kilometers to the ocean. What is the average gradient in meters per kilometer? a. 0.5 m/km b. 2 m/km c. 5 m/km d. 0.2 m/km e. none of the above

7. (2 pts) The continuous circulation of Earth's water supply between the ocean, atmosphere, and landmasses is called the ______cycle.

8. (3 pts) As part of the cycle mentioned in question 7, when rain falls on a land surface, the water may take three paths from the surface. Name these paths:

9. (3 pts) The downward limit to stream erosion is called ______.