Compared to sandstorms, dust storms _____.
a. involve gravel-sized sediment
b. are moved by running water
c. carry smaller particles
d. carry ice instead of rock particles
e. carry sediment closer to the ground
Question 2
Large sand grains too heavy to be lifted into the air are pushed forward along the ground surface by the impact of bouncing grains in a process called _____.
a. ventifaction
b. debris flow
c. saltation
d. suspension
e. surface creep