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P-Waves and S-Waves
Earthquakes often occur at the Mariana Trench. P-waves and S-waves are produced by earthquakes.
Which statement describes P-waves and S-waves? Tick one box.
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Marking points
- 1 Selects ‘P-waves are longitudinal and S-waves are transverse.’
Why this answer loses marks
Treats both seismic waves as the same wave type.
Primary and secondary seismic waves have different classifications, so the two labels must not be grouped together.