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The scientist who pioneered the continental drift hypothesis was:

New plate material and ocean crust is formed by:

Folding of sedimentary rocks is associated with:

The innermost part of the earth consists of two zones best described as a:

Overall, most of our knowledge about the earth’s interior comes from:

Igneous rocks develop their paleomagnetic properties when:

S-waves:

Paleomagnetic properties of rocks provide evidence for:

Paleomagnetic properties of rocks provide evidence for:

A heat-driven convection current model of plate motion suggests that plates move on the surface as mantle rock: