There are three main types of rocks: sedimentary, igneous, and metamorphic. Each of these rocks are formed by physical changes—such as melting, cooling, eroding, compacting, or deforming—that are part of the rock cycle. Sedimentary rocks are formed from pieces of other existing rock or organic material.
Because it’s first hand information
<span>In 1968, Brezhnev ordered the Soviet army and troops of other Eastern European nations to crush a liberal communist regime in </span><span>Czechoslovakia. </span>
If i aint mistaken it is d
