answer
1. Which of the following factors causes the breaking down of rocks?
A. Man and animals
B. plants
C temperature D all of these
2. What refers to the process of breaking down of rocks into smaller pleces?
© Erosion
B. landslide
C. tsunami
D. weathering
3. Which of the following situations contributes to the breaking of rocks?
A. Heavy rains
C high temperature
B intensive waves
D. abrupt changes in weather
4. Which of the following human activities may contribute to the breaking down of rocks?
A cutting of trees B. landscaping
C planting of trees
D. mining
5 How do animals breakdown rocks?
A Animals step on rocks
C. acid from dead animals weaken rocks
B Use of their hooves and horns
D. all of the above
6. Which of the following is a good effect of soil erosion?
A Clogging of irrigation
C. deposition of mine tailings
B Decrease of food production
D shaping of landforms
7. Heavy rain was experienced last night When Ernesto woke up this morning, he noticed that
there was mud in their front yard. What agent of erosion caused this?
A. Animal
B. human
C wind
D. water
8. Which process refers to the movement of soil from one place to another place?
A. deposition B. landscaping
C. weathering
D. erosion
9. Some tiny plants are growing on rocks in the garden. What will happen after a long time
The rocks will
A become harder
C. gather more mineral
B grow bigger
D. weaken and break
10 How does temperature breakdown rocks?
A Rocks break when it is cooled. C. Rocks break when it is not exposed to water
B. Rocks break when it is heated, D. Rocks break when it is heated and then cooled.
11 Which of the following materials is transported by erosion?
A rocks
B. sediments
C. water
D. soil
12. How do humans contribute to soil erosion?
A when we walk B. when quarrying
C. when gardening D all of these
13 What agent of erosion contributes to the formation of sand dunes?
A animals
B. plants
C. water
D. wind
14 Dust on the window is caused by
erosion
A animals
B humans
water
D. wind
15. How do burrowing animals contribute in the transportation of sediments?
A They plow the land, C they bite the rocks and break into pieces
B. they step on the rocks D They dig the ground and the soil particles stick to their
bodies



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