II. Directions: Read each question carefully. Write the letter of the correct answer on the space
s of topsoil cannot affect the growth of the plants.
food production so farmers would have less harvest.
provided.
11. When is wind an agent of soil erosion? When if
A Stops picking up rocks
C. Breaks rock into pieces
B. Presses down on rocks
12. Which of the following shows that soil erosion is caused by animals?
D. Carries rock pieces to other places
A. Construction workers are building a housing project.
B. Rabbit digging the soil.
C. Root of pants are growing.
D. Sandsform
13, All of these are causes of soil erosion except one.
A. Water
B. People
D. Wind
C. Sun
14. How can trees prevent soil erosion?
A. The roots hold the soil firmly together.
B. The trees block the way of running water.
C. The roots absorb the water at once.
D. The roots secrete acid, attacking the rocks.
15. The following are human activities that can aggravate the effects of soil erosion in the environmen
EXCEPT?
A. Illegal Logging
B. Mining
D. Quarrying
C. Reforestation
16. Why are sandy beaches prone to erosion?
A. Because of the wind
B. Because of the waves and tides
D. Because of the marine animals
C. Because of mining
_____17. Which of the following activities of man contribute to the breaking down of rocks?
B. mining
A. fishing
D. sky diving
C. studying
18. How do roots of plant break down rocks?
B. They heat the rocks.
A. They split the rocks apart.
D. They absorbed rock particles
C. They leave materials on the rocks.
19. Which of these can occur due to soil erosion?
A. Pollute water bodies
B. removal of topsoil
D.
C.
20. A type of weathering that involves change in the composition of rocks.
C. both chemical and mechanical
A. chemical
D. none of the above
B. mechanical​