Match the definitions to the words

1.      seismic shadow zone
2.      triangulation   
3.     rayleigh waves 
4.      love waves

a.  a process used to determine the epicenter of an earthquake
b.  a surface wave that causes horizontal motion
c.    areas on the earth’s surface where waves traveling through the earth don’t arrive due to refraction
d.  a surface wave that causes vertical motion

The correct matching is 1: C, 2: A, 3: D, 4: B.

Explanation:

Seismic shadow zone is an area on the surface of the earth where the waves cannot travel due to the presence of liquid. Triangulation is the process which is used by the scientists to determine the epicenter of the earthquake. Rayleigh waves cause motion in the deep earth both in horizontal and vertical motions. Love wavers are the waves that cause motion in the deep earth in horizontal motion only.

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