1. Which of the following will not describe a focus?
a. place where the fault begins to slip b. origin of the earthquake
c. it is where the first movement occurs d. crack in the earth's crust

2._______are sudden movement of the earth's crust.
a. fault
b. epicenter
c. focus
d. earthquake

3. PHIVOLCS describes earthquake by intensity scale. Which of the following intensity scale and description is mismatched?
a. I – Scarcely Perceptible
b. III - Weak
c. VII- Very Destructive
d. X- Completely Devastating

4. Refer to the illustration below. As you move the sheets, what is formed in the flatten sand?
a. A crack will be formed.
b. A line or break will be formed.
c. A slope will be formed.
d. a and.b