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Sandstone is an example of a __________ rock.

If metamorphosed under confining pressure, a quartz sandstone would become which metamorphic rock?

For the sample of the metamorphic rock gneiss shown below, choose the set of arrows which best shows the direction of differential stress which caused the foliation to develop. Mark your answer with the letter of the correct arrow pair.

Arkose is a sedimentary rock dominated by what mineral?

When an atom gives up or accepts an extra electron, so that the number of protons no longer is equal to the number of electrons, the result is ____.

Atoms of different elements can “stick together” (making compounds) via electrons sharing or trading arrangements called _________.   

Metamorphic rocks may form from __________.

One of the things that is distinctive about planet Earth is that it has _____ very distinct types of crust. (Insert a number)

The _______________ theory describes how the planets, Sun, and asteroids of our solar system initially formed.

Please select the drug for treating minor diarrhea: