Which of the following earthquake waves cause the material they pass through to

Question

Which of the following earthquake waves cause the material they pass through to compress and extend?

Select one:

a. P-waves

b. S-waves

c. Surface waves

d. All of the above

Continue looking at the map with the earthquake epicenters. Which region on the map from the list below has the most earthquakes?

Select one:

a. Atlantic ocean

b. Pacific ocean

c. Indian ocean

d. Arctic Ocean

This question will require your knowledge of Plate Boundaries from Module 3. What type of plate boundary most commonly surrounds the Pacific Plate?

Select one:

a. Transform boundary

b. Divergent boundary

c. Convergent boundary

Explanation / Answer

1. a - P waves

P waves are also called compressional waves because they cause compression and extension of the material in the direction of propagation of the wave

2. b - Pacific ocean

About 90% of all the earthquakes throughout the world occur along the pacific ring of fire.

3. c - Convergent boundary

In general, the Northern and Western sides of Pacific plate is bounded by convergent boundaries, while there are transform and divergent boundaries on the other sides. Comparatively larger portion of the plate boundary forms convergent boundaries/subduction zones.

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