3. The slowest mass movement that causes retaining walls to topple and fence pos

Question

3. The slowest mass movement that causes retaining walls to topple and fence posts to tilt is: A. Mudflow B. Slump C. Soil creep D. Rock fall

6. The wettest mass movement is a(n): A. Mudflow B. Slump C. Soil creep D. Rock fall

7. A mass movement of snow going down a track down to a run out zone is a(n): A. Exfoliation B. Block Faulting C. Slumping D. Weathering E. Avalanche

8. The modification and destruction of rock and sediment through time is: A. Weathering B. Slump C. Talus D. Rock fall

14. Water held tightly to sediment grains is called: A. Aquiclude B. Hygroscopic C. Percolation D. Field capacity

15. A(n) ___________ is an impermeable body of rock that may contain water but does not allow water to pass through it. A. Aquiclude B. Hygroscopic C. Percolation D. Field capacity

16. Karst doesn't occur in Arctic Climates because the water, though present, is frozen. A. True B. False

17. Physical weathering is responsible for most Karst formation A. True B. False

18. The primary form of weathering in Karst formation is oxidation: A. True B. False

19. Only mid-latitudinal climates contain Karst formations because they provide the right balance of moderate temperature and precipitation A. True B. False

20. Sinkholes occur when the subterranean limestone rock has been dissolved to form a cavity A. True B. False

21. Karst topography can form in most types of rock A. True B. False

22. Water vapor dissolves carbon dioxide, forming a weak carbonic acid A. True B. False

23. Most Karst formations appear reddish due to oxidation A. True B. False

24. Karst topography can be found in Arid regions if the region has ? A. Rock with high iron content B. A past climate with significantly wetter conditions C. Significant tectonic activity D. None of the above

25. In the formation of a Karst, vegetation is A. Required for supply of organic acids B. Not required at all C. Is not possible near Karst topography D. None of the above

26. What are fluvial landscapes? A. grassland B. stream system C. river systems D. lava system

Explanation / Answer

3) soil creep is the slowest mass movement among all, the downgrade movement may vary from 1 mm to several centimeters a year.

6) mud flows , mud flows generally contains 20 to 40% water and they have highest velocities.

7) avalanche, avalanche is the rapid downgrade flow of snow

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