8 As a stream flows around a meander bend, the fastest part of the flow is A nea

Question

8 As a stream flows around a meander bend, the fastest part of the flow is A near the inside of the meander loop B. at the center line of the stream channel, exactly midway across the strea at the surface, in contact with the atmosphere D) near the outside of the meander loop along the stream bed, at the very deepest part of the channel 9. The limit to downcutting of a stream is called the- A. headwater B. bedrock level C. gradient base level profile 10. A(n) may be found above a stream and its present floodplain is a remnant of an older flood plain or river-eroded flat surface that may be A. levee B. incised meander C. cut bank D. upland plateau E. stream terrace Y11. Alluvial fans typically form A. at headwaters of humid climate streams B, along the profile of a graded stream C. at mouths of mountain canyons from material transported as part of the suspended load E. at sharp meander bends 12. The difference in the elevation of a stream channel over a given distance is the A. discharge B gradient C. runoff D. capacity E. velocity 13. Given enough time, a meandering stream will A. eventually straighten itself and flow directly to the coast B, become narrower until it forms a V-shaped valley C continue to meander within its floodplain deposits become a steep mountain stream with trout E. transport large clasts of sediment as a bed load 14. Chemically weathered limestone is often transported by a stream as part of the A. bed load B. dissolved load C. suspended load D. traction load E. floating load 15. A stream cannot downcut or erode A. into the drainage divide B. through the top of bedrock C. into the edge of the flood plain Q below base level E. without leaving its channel

Explanation / Answer

8)   D

9) D

10) A

11) B

12) C

13) A

14) E

15)   A

16) C

17) A

18) D

19) E

20) A

21) C

22) B

23) E

24) E

25) B

26) A

27) A

28) B

29) A

30) B

31) E

32) C

33)   D

34) D

35) A

36) C

37) D

38) A

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