3.Tree bases that bow downhill indicate a hillside slope that is creeping. T/F?
ID: 118242 • Letter: 3
Question
3.Tree bases that bow downhill indicate a hillside slope that is creeping. T/F?
15. Tree bases that bow downhill indicate a hillside slope that is creeping.
False
25. Rectangular drainage often indicates the presence of?
talus
14. Earthflow can create talus piles.
False
36. River valleys tend to get both deeper and wider over time. T/F
8.What causes Mass Wasting?
5,Talus piles lie at their angle of repose. T/F
4.Landslides are a type of Mass Wasting. T/F
45.Young rivers generally have large, wide floodplains.
38.Alameda Creek runs through a water gap (Niles Canyon) in the East Bay Hills. This means that Alameda Creek is older than the East Bay Hills.
36.River valleys tend to get both deeper and wider over time.
34.Branching like a tree
33.Rounded sand grains are more likely to have been transported long distances by wind or water than angular grains
32.Knowing how levees are formed, most levees are made of
23..A chain of mountains around a river system.
10.Vegetation usually accelerates creep and earthflow; therefore removal of vegetation from steep slopes can help minimize the danger and destruction from debris flows and other types of mass wasting. T/F?
2. Earthflow can create talus piles. T/F?
TrueExplanation / Answer
3. True
15. True
25 joints because the joints are usually less resistant to erosion than the bulk rock so erosion tends to preferentially open the joints and streams eventually develop along the joints. The result is a stream system in which streams consist mainly of straight line segments with right angle bends and tributaries join larger streams at right angles.
14 True (A talus slope is developed by an accumulation of rock fragments at the foot of a cliff or ridge. Rock fragments break loose from the cliff above, roll down the slope and pile up in a heap of rock rubble. Individual talus forms as a half-cone with the apex pointing upwards. In most cases a series of half cones coalesce around the base of a mountain.)
8. weathering, erosion and gravity as causes are
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