2. Which statement is true of P-waves?

a. They travel the fastest through rocks.
b. They vibrate at 90° to the wave motion.
c. They are last to reach the epicenter.
d. They are the most damaging.

4. When rocks break, they cause _____ that move throughout the surrounding rock. If they are large enough, these _____ are felt as earthquakes.

a. strike-slip faults
b. vibrations
c. epicenters
d. compressions

2. C

4. B

Please check my answers.

Please Help me.

nvrmnd i got it

its A

To determine the correct answers, we can analyze the options and eliminate the incorrect ones.

2. Which statement is true of P-waves?
a. They travel the fastest through rocks.
b. They vibrate at 90° to the wave motion.
c. They are last to reach the epicenter.
d. They are the most damaging.

To determine which statement is true, we need to consider the characteristics of P-waves. P-waves, also known as primary waves, are seismic waves that travel through the Earth's interior. They have the ability to travel through solids, liquids, and gases.

a. P-waves travel the fastest through rocks. This statement is true. P-waves are the fastest seismic waves and can travel through rocks at speeds of up to 6 km/s.

b. P-waves vibrate at 90° to the wave motion. This statement is false. P-waves vibrate in the same direction as the wave motion.

c. P-waves are last to reach the epicenter. This statement is false. P-waves are the first seismic waves to reach the epicenter, followed by S-waves and surface waves.

d. P-waves are the most damaging. This statement is false. While P-waves can cause damage, they are generally less damaging than other types of seismic waves.

Based on this analysis, the correct answer is:

a. They travel the fastest through rocks.

4. When rocks break, they cause _____ that move throughout the surrounding rock. If they are large enough, these _____ are felt as earthquakes.
a. strike-slip faults
b. vibrations
c. epicenters
d. compressions

To determine the correct answer, let's consider the process of earthquakes. Earthquakes occur when rocks along a fault line break or slip. This breakage or slipping generates seismic waves that propagate through the surrounding rock.

a. Strike-slip faults. This option describes the type of fault where horizontal displacement occurs due to shear forces. While earthquakes can occur along strike-slip faults, it does not fully answer the question.

b. Vibrations. This option describes the movement of seismic waves through the rock. When rocks break, they create vibrations that propagate through the surrounding rock. These vibrations are felt as earthquakes. This is the correct answer.

c. Epicenters. This option refers to the point on the Earth's surface directly above the focus or origin of an earthquake. While the epicenter is related to earthquakes, it does not directly answer the question about the movement that causes earthquakes.

d. Compressions. This option refers to the compression waves that are part of seismic waves, but it does not fully answer the question about the movement that causes earthquakes.

Based on this analysis, the correct answer is:

b. Vibrations.

whats the answer ??? un number 2 ????/