Answers

2016-07-21T13:34:01+08:00
I DONT KNOW WHATS THE ANSWER
0
2016-07-21T14:02:04+08:00
Body waves and surface waves.

body waves have 2 types
*primary waves (p-waves)
*secondary waves (s-waves)

surface waves have 2 types
*rayleigh waves
*love waves
2 4 2