Seismic waves that cause a rolling or swaying motion of the ...

[dakota nelson]

Seismic waves that cause a rolling or swaying motion of the surface of the ground are called
  ___________________ _ waves Fill in the blank(s) with the appropriate word(s).

Question 2

The fastest seismic waves, which can travel through solids, liquids, and gases, are
  ___________________ _ waves. Fill in the blank(s) with the appropriate word(s).

[momolu]

Answer to Question 1

surface

Answer to Question 2

P/primary