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________ dunes result from persistent, onshore winds in certain coastal areas.

Metamorphic rocks formed during episodes of mountain building typically show textural characteristics indicative of shearing stress and deformation.

The main goal of paleoclimatology is to understand the climate of the past in order to ________.

The horizontal distance between successive crests (or troughs) is called the ________.

The main goal of paleoclimatology is to understand the climate of the past in order to ________.

Dissolved gases may comprise up to a few percent by weight of a magma.

Which one of the following statements concerning volcanic blocks and bombs is TRUE?

When did the first abundant fossil evidence appear?

________ is the cool, brittle, outer layer of Earth that includes the crust and uppermost mantle.

You come upon a series of folded sedimentary strata in the field. Which principle can you use to determine that they must have been disturbed after their deposition?