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The image below shows a mineral specimen of pyrite. What is the term for the thin parallel corrugations or stripes shown on the crystal faces below?

Which of these parts of the deep-ocean floor is flat and nearly featureless?

In the geologic past, the polarity of the Earth’s magnetic field is ________.

Differential stress will cause crystals to align in a preferred orientation unless the crystals are ________.

Imagine you have a layer of limestone with high porosity but low permeability. What can you do to increase its permeability to allow water to be pumped from the layer and used as a source of drinking water?

The figure below shows a road in Death Valley, California, curving around a(n) ________.

In the whole Earth, the four most common elements (by mass) are oxygen, silicon, magnesium, and ________.

Of the ~4,000 known minerals, the vast majority ________.

Comets are primarily a mixture of ________.

If the lithology and fossil content of two bodies of rock on opposite sides of a canyon are identical, then these remaining outcrops were likely physically connected at one time and formed part of an extensive, sheet-like layer of rock. This idea summarizes the principle of ________.