1. The process that moves sediments
a. erosion b.weathering
c.dissolution d.fracture

2.Landslides on mountain slopes show the force of
a. wind
b. gravity
c. runff
d. running water
3. When is wind an agent of soil erosion?
a. when it breaks rocks into pieces b. when it blows rock pieces to other places
c. when it stops picking up rocks
d. when it presses down rocks

4. What makes the water muddy after a heavy rain?
a. the pebbles picked up by water b. the soil and sand are mixed with the water and
carried by it c. the goddess of rain make muddy rain fall on the ground
d.the color of the soil


5. Which of the following shows that soil erosion is caused by animals?
a. Construction workers are building a housing project b. Hen is scratching the soil
C. roots of plants are growing
d. sandstorm
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