Which of the following factors cause the breaking down of rocks? *
1/1
A. man and animals
B. plants
C. temperature
D. all of these
2. What refers to the process of breaking down of rocks into fragments or pieces? *
1/1
A. erosion
B. landslide
C. weathering
D. tsunami
3. Which of the following situations contribute to the breaking down of rocks? *
1/1
A. high temperature
B. low tide
C. rainshowers
D. rainbows
4. Which of the following human activities may contribute to the breaking down of rocks? *
1/1
A. cutting of trees
B. mining
C. landscaping
D. planting of trees
5. How do animals breakdown rocks? *
0/1
A. stepping on rocks
B. burrowing or digging
C. acid from animals manure
D. all of the above
Correct answer
D. all of the above
Feedback
D
6. Which of the following is a good effect of soil erosion? *
1/1
A. clogging of irrigation
B. decrease of food production
C. shaping of landforms
D. deposition of mine tailings
7. Heavy rain was experienced last night. When Arman woke up this morning, he noticed that there was mud in their front yard. What agent of erosion caused this? *
1/1
A. animal
B. water
C wind
D. human
8. Which process refers to the movement of soil from one place to another? *
1/1
A. erosion
B. deposition
C. oxidation
D. migration
9. How do humans aggravate soil erosion? *
1/1
A. by planting
B. by building houses
C. by hunting animals in the forest
D. by indiscriminate cutting of trees
10. Which of the following does not help in controlling soil erosion? *
0/1
A. contour plowing
B. deforestation
C. riprapping
D. terracing
Correct answer
B. deforestation
Feedback
B
11. Which of the following materials is transported by erosion? *
0/1
A. sediments
B. rocks
C. soil
D. water
Correct answer
C. soil
12. Which of the following is NOT an agent of erosion? *
0/1
A. human
B. water
C. wind
D. soil
Correct answer
D. soil
Feedback
D
13. How do humans contribute to soil erosion? *
0/1
A. when we walk
B. when quarrying
C. when we do gardening
D. all of these
Correct answer
D. all of these
Feedback
D
14. What agent of erosion contributes to the formation of sand dunes? *
1/1
A. animals
B. plants
C. water
D. wind
15. Dust on the window is caused by _______ erosion. *
1/1
A. animals
B. humans
C. water
D. wind
16. How does erosion affect the land with steeper slope? *
0/1
A. rock formation
B. breaking down of rocks
C. possibility of landslide and rockslide
D. all of the above
Correct answer
C. possibility of landslide and rockslide
Feedback
C
17. How do burrowing animals contribute in the transportation of sediments? *
1/1
A. They plow the land.
B. They step on the rocks.
C. They bite the rocks and break into pieces.
D. They dig the ground and the soil particles stick into their bodies.
18. Which of the following practices involve the planting of crops on terraces or steps built on the slope of a mountainside? *
1/1
A. contour plowing
B. crop rotation
C. rip rapping
D. terracing
19. How do the roots of the trees may help in controlling soil erosion? *
0/1
A. They keep the soil more intact.
B. They go deep down the ground.
C. They absorb the nutrients from the soil.
D. All of the above
Correct answer
A. They keep the soil more intact.
Feedback
A
20. Which of the following human activities can lead to the destruction of the environment? *
1/1
A. deforestation
B. quarrying
C. mountain blasting
D. all of these
Share
Answer:
1.D
2.A
3.A
4.A
5.D
6.C
7.C.
8.A
9.A
10.B
11.C
12.A
13.A
14.B
15.C
16.D
17.D
18.C
19.D
20.D