a. what type of waves are produced before actual earthquake
b. name two species of animals which can detect and produce these waves
c. what is the range of hearing for children under the age of five
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a) 3 types of seismic waves r produced before earthquakes 1 primary waves
2 secondary waves
3 surface wave
c)25000Hz
2 secondary waves
3 surface wave
c)25000Hz
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