Reference no: EM133373562
Questions
1. The second La Conchita landslide was a ___________________.
a. debris flow
b. small slump
c. earthflow
d. rockfall
2. A landslide begins on a hillside behind a house. The landslide toe buries much of the house's backyard. Which of the following is a bad idea?
a. Putting a waterproof tarp over the landslide.
b. Carving away the upper part of the landslide.
c. Building a retaining wall out of steel beams and wood blocks.
d. Cutting away the toe to unbury the yard before the landslide dries out and hardens.
3. The first La Conchita landslide was a ___________________ .
a. debris flow
b. giant slump
c. earthflow
d. rockfall
4. Select TWO common signs of a landslide.
a. dead vegetation
b. arcuate scarp
c. brown vegetation
d. j-shaped trees
5. Select TWO common landslide triggers.
a. water
b. planting vegetation on a slope
c. oversteepening
d. draining a hillside of water
6. Debris flows are common in California after ____________________.
a. droughts, followed by rain
b. droughts, followed by snow
c. wildfires
d. road construction
7. Zoning is impractical at Marlinton because ____________________.
a. Political opposition to zoning.
b. Floodplain maps are too imprecise for accurate zoning.
c. The town is already built!
d. Zoning does not take into account future climate change.
8. Sand deposits are imperfect pale stage indicates because ___________________.
a. only tell you the minimum water depth (the water could have been deeper).
b. only tell you how long a flood lasted.
c. only tell you where a flood happened.
d. Only tell you water velocities.