Question

1. scientists use seismic waves to study inner earth. a. how are seismic waves formed? (2 points) b. what are two characteristics of p waves? (2 points) c. what are two characteristics of s waves? (2 points) d. how do absorption, reflection, and refraction change the movement of p waves? (6 points)

Explanation:

A. Seismic waves are formed by sudden release of energy in Earth's crust, like during an earthquake or explosion.
B. P - waves are compressional waves and they can travel through solids, liquids, and gases.
C. S - waves are shear waves and they can only travel through solids.
D. Absorption reduces the amplitude of P - waves as they travel. Reflection causes P - waves to bounce back when they hit a boundary between different materials. Refraction changes the direction of P - waves as they pass from one material to another with different properties.

Answer:

A. Seismic waves are formed by sudden release of energy (e.g., earthquakes, explosions).
B. Compressional; can travel through solids, liquids, and gases.
C. Shear; can only travel through solids.
D. Absorption reduces amplitude, reflection makes them bounce back, refraction changes their direction.