1. It is the breaking of rocks physically.
A. Chemical weathering
B. Mechanical weathering
C. Soil Formation
D. Weathering

2. How does temperature break the rocks apart?
A. By cooling and heating, the rock becomes hard.
B. By cooling and heating, the rocks become smooth.
C. By cooling and heating, the rocks become colorful.
D. By cooling and heating, the structure of the rocks weakens.

3. Why is weathering useful to plants and animals?
A. Because of formation of soil
B. Because of formation of rocks
C. Because of the formation of fossils
D. Because of the formation of landscape

4. It is the breaking down of rocks into smaller particles.
A. Erosion
B. Formation
C. Rock elements
D. Weathering

5. The following human activities causes weathering, EXCEPT
A. Mining
B. Quarrying of rocks
C. Boating and fishing
D. Building roads and tunnels

6. Which of the following is the product of continuous breaking of rocks?
A. Erosion
B. Soil formation
C. Typhoon
D. Weathering

7. This type of weathering happens when the rock changes its composition.
A. Chemical weathering
B. Mechanical weathering
C. Soil Formation
D. Weathering

8. The following tends to cause physical or mechanical weathering. Which one is
NOT?
A. Dead plants that produces acids
B. Animal that burrows in the ground
C. Root of plants growing into the cracks in the rocks
D. Water that seeps into the pores and cracks of rocks

9. Which of the following occurs when carbon dioxide from the air or soil
sometimes combines with water?
A. Carbonation
B. Erosion
C. Hydrolysis
D. Oxidation

10.You noticed that some small plants are growing on the rocks. What do you
think will happen to this rock after some time?
A. The plants will break the rock.
B. The plants will make the rock hard.
C. The plants will make the rock rough.
D. The plants will make the rock smooth.