Question

What is mean by primary and secondary waves??​

Answer 1

Answer:

Secondary waves are the second seismic waves to arrive at any particular location after an earthquake, though they start at the same time as primary waves. Secondary waves travel through Earth's interior at about half the speed of primary waves. Secondary waves are also called S waves.

Explanation:

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Answer 2

Explanation:

primary waves- are the first waves to arrive at a seismograph secondary waves- are the second seismic waves to arrive at any particular location after an earthquake