Question

How do seismic waves help scientists understand Earth's layers?(1 point)
Responses

Scientists can observe how seismic waves multiply when passing through different layers.
Scientists can observe how seismic waves multiply when passing through different layers.

Scientists can generate seismic waves in order to observe their paths through Earth.
Scientists can generate seismic waves in order to observe their paths through Earth.

Scientists can observe which seismic waves change the composition of the layers they pass through.
Scientists can observe which seismic waves change the composition of the layers they pass through.

Scientists can observe how seismic waves change speeds when passing through different layers.
Scientists can observe how seismic waves change speeds when passing through different layers.

Answer 1

At which continental feature would you expect to find metamorphic rock? Select the correct answer.(1 point)
Responses

Mountain
Mountain

Volcano
Volcano

Valley
Valley

Lake bottom

Answer 2

Scientists can observe how seismic waves change speeds when passing through different layers.