I.Choose the letter of the correct answer and write your answer before the number.
1. Where does an earthquake originate?
A. Epicenter
C. intensity
B. Focus
D. Magnitude
2. What kind of volcanic eruption when there are large amount of pyroclastic are
ejected by the volcano into the air?
A. Quiet eruption
C. Explosive eruption
B. Nonexplosive eruption D. None of the above
3. Which of the following event causes an earthquake?
A. Mixture of crustal plates
B. Too much heat from the sun
C. Movement of crustal plates
D. Changing temperatures
4. What does PHIVOLCS mean?
A. Philippine Institute of Volcanology
B. Philippine Institute of Volcanologists
C. Philippine Institute of Volcanology and Seismology
D. Philippine Institute of Volcanologists and Seismologists
5. At what magnitude can an earthquake cause displacement of buildings and cracks on
the earth's surface?
A. Magnitude 5 C. Magnitude 7
B. Magnitude 6 D. Magnitude 8​

Patulong po ng tama at maayos na sagot please kailangan ko po talaga ngayon eh:(:( tysm po:):)​