For learning task 2:
Analyze distance graph (page 11).Then copy and answer the following in a paper.

Fill in the blank spaces to complete the paragraph.Choose the best answer from the word pool below (5pts)

Seismic waves are the waves of energy caused by the sudden breaking of rock within the earth or an explosion. They are the 1._____ that travels through the earth and is recorded on 2._____, 3._______ waves can travel through the earth's inner layers while 4.______ waves can only move along the surface of a planet like ripples on water. The 5._____ wave is the fastest and can travel through solid rocks and fluids.

A. Primary wave
B.Surface wave
C. Energy
D. Body wave
E. Seismographs