Respuesta :
Answer:
igneous rocks
Explanation:
Extrusive, or volcanic, igneous rocks are formed when molten hot material cools and solidifies. 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
Answer:
black sand
Explanation:
black sand comes from erodes volcanic material