Based on your question regarding Primary (P) and Secondary (S) waves, here are the true statements:
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Primary waves can move through liquids, solids, and gases - This statement is true. P-waves are longitudinal waves and can travel through all states of matter.
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Primary waves travel to fewer places on Earth's surface - This statement is false. P-waves can travel through the entire Earth and are detected at many points on the Earth's surface.
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Secondary waves are faster than Primary waves - This statement is false. P-waves travel faster than S-waves.
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Secondary waves can travel through solids only - This statement is true. S-waves are shear waves and can only travel through solids.
In conclusion, the true statements are:
- Primary waves can move through liquids, solids, and gases.
- Secondary waves can travel through solids only.