Answer:
1.C.Longitudinal waves
2.A. Medium
3.D. 300,000 km/s
matter or space
4.B.Wave
5.F. Crest
6.I. Trough
7.E. Sound Waves
8.G. earthquake
particles of a solid through which the sound travels.
9.J. Transverse
10.H. Light waves
a result of the surrounding rock pushing and pulling on it.
Explanation: hope its help