Question

1. during an earthquake in japan, seismic waves travel through:

only air above the ground
only the ocean water
the solid rock and soil of earth
only through buildings and structures

Explanation:

Seismic waves, such as P - waves (primary waves) and S - waves (secondary waves), travel through the solid rock and soil of the Earth. P - waves can travel through solids, liquids, and gases, but S - waves can only travel through solids. During an earthquake, these waves originate from the earthquake's focus (hypocenter) within the Earth's crust or mantle. They do not just travel through air above the ground (as they are mainly body waves and surface waves related to the Earth's interior and surface materials), not only through ocean water (since S - waves can't travel through liquids like ocean water in the same unimpeded way as through solids for some wave types), and not only through buildings and structures (they originate from the Earth's interior and then can affect buildings and structures as they propagate through the ground to the surface).

Answer:

The solid rock and soil of Earth.