1-Which of the following statements correctly describes characteristics of seismic surface and body waves?

a. Surface waves travel in rocks and sediment near Earth's surface and travel faster than body waves

b. Surface waves travel in the air, just above Earth’s surface and travel slower than body waves

c. Body waves travel through Earth's interior and travel faster than surface waves

d. Body waves travel through Earth's interior and travel slower that surface waves

2-What is the difference in the amount of shaking between an earthquake with a Richter magnitude of 5.5 and an earthquake with a Richter magnitude of 8.5?

a. 3

b. 30

c. 100

d. 1000

e. 3000