11. How do scientists locate the epicenter of an earthquake?
A) By analyzing the speed of the earthquake waves
B) By analyzing the intensity of the earthquake
C) By measuring the amount of destruction caused by the earthquake
D) By using a seismograph
Answer: A) By analyzing the speed of the earthquake waves
12. What is the minimum number of seismographs required to locate the epicenter of an earthquake?
A) 1
B) 2
C) 3
D) 4
Answer: B) 2
13. Which type of earthquake waves can travel through both solid and liquid material?
A) P-waves
B) S-waves
C) L-waves
D) R-waves
Answer: A) P-waves
14. Which of the following is NOT a secondary wave?
A) P-wave
B) S-wave
C) L-wave
D) R-wave
Answer: C) L-wave
15. Which continent has the most earthquakes?
A) Asia
B) North America
C) South America
D) Europe
Answer: A) Asia
