2. 外语
  3. Select the appropriate phrases from the answer choices and match them to the type of mass wasting to which they refer. TWO of th

Select the appropriate phrases from the answer choices and match them to the type of mass wasting to which they refer. TWO of th

admin2012-01-14  32
问题 Select the appropriate phrases from the answer choices and match them to the type of mass wasting to which they refer. TWO of the answer choices will NOT be used. This question is worth 4 points.   Answer Choices   A．Occur when a mass of rock moves downslope as a unit   
B．Involve the mass movement of soil containing a large amount of water   
C．May have the consistency of wet concrete or soup   
D．Occur where sloping rock layers have cracks parallel to the slope   
E．Occur when a layer of snow breaks loose and moves rapidly downslope   
F．Include the transportation of organic materials by wind and water   
G．Float on a thin layer of air as they move rapidly down a mountain   
H．Move slowly but with enough force to carry away trees and houses   
I．Occur on slopes where layers of volcanic debris become extremely wet
Mudflows ______ ______ ______ ______
选项
答案BCHI
解析 Mudflows: Mudflows...involve soil and a large amount of water; The consistency of the mudflow may be similar to that of wet concrete, or it may be a soupy mixture...; When a mudflow is dense, it moves more slowly, but it can easily carry or push large boulders, trees, and even houses along with it; Mudflows containing volcanic debris are called lahars... ; Lahars occur when highly unstable layers of ash and debris become saturated with water.... Answers (E) and (F) refer to neither rockslides nor mudflows. (1.10)
转载请注明原文地址:https://jikaoti.com/ti/cIlYFFFM
0

托福（TOEFL）

相关试题推荐
随机试题
最新回复(0)