What are two characteristics of P waves?

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Tags

1. #travels
2. #which
3. #compressional
4. #second
5. #course
6. #waves
7. #pulling
8. #primary
9. #surfaces
10. #comprise
11. #liquid
12. #solid
13. #through
14. #similar
15. #pushing
16. #compress
17. #means
18. #secondary
19. #sound
20. #first
21. #earthquake
22. #arrive