<em /><u><em>"She did not understand what happened."
</em></u>It is a complete sentence since it has a subject (she) and a verb (understand), and is independent (i.e. doesn't require another clause to make sense<u><em> </em></u>
A rock is made of minerals. It should be noted that minerals are crystalline solids which are formed from atoms that are chemical bonded to an orderly structure.
Examples of common rocks include limestone, granite, basalt, and sandstone.
Therefore, after unscrambling the word, the answer is "minerals".