Question

a 30. in which of the following erosion processes is gravity not a major factor?
a. dust storms c. creep
b. mudflows d. slump
matching
match each item with the correct statement below.
a. the steepness of a slope
b. water beneath earths surface
c. the upper boundary of the zone of saturation
d. the percentage of the total volume of rock consisting of open spaces
e. a circular depression that forms when rock dissolves
f. a body of rock that stores underground water and allows it to flow
g. irregular landforms created by chemical weathering on soluble rock characterized by caverns and sinkholes
e 31. sinkhole
b 32. groundwater
c 33. aquifer
d 34. water table
a 35. porosity
f 36. gradient
g 37. karst topography

Explanation:

• Dust storms: Caused by wind, gravity is not a major factor.
• Mudflows: Gravity causes the movement of mud and debris.
• Creep: Slow downhill movement of soil and rock due to gravity.
• Slump: Mass movement of rock or soil along a curved surface due to gravity.

Answer:

A. dust storms