In which of the following igneous rocks and environments would you expect to find unusually high concentrations of rare elements such as lithium, beryllium, and boron?

When an atom gains an electron during a chemical reaction, which of the following is true?

Which of the following best describes the Earth system?

Partial melting results in magma that is ________ that of the rock from which it was derived.

A cross-sectional view of a stream from its source area to its mouth is called its ________.

Which one of the following statements is TRUE for an artesian aquifer?

________ is a form of calcium carbonate.

Chemical sedimentary rocks are classified (named) based on the ________.

Which of the following best describes the Earth system?

A(n) ________ is likely to host a waterfall or steep rapids today.