Question

1. what type(s) of wave travels only through the crust 1 point primary wave secondary wave surface wave primary and secondary wave primary, secondary, and surface wave 14. what type(s) of wave cannot travel through a liquid-evidence that the outer core is a liquid? 1 point primary wave secondary wave surface wave primary and secondary wave primary, secondary, and surface wave

Explanation:

For question 13: Surface waves are seismic waves that only propagate along the Earth's crust (the outermost layer), unlike primary and secondary waves which can travel through deeper layers.
For question 14: Secondary (S) waves are shear waves that cannot travel through liquid materials. This inability to pass through the outer core is key evidence that the outer core is liquid, while primary waves can travel through liquids and solids, and surface waves only move along the crust.

Answer:

1. Surface Wave
2. Secondary Wave