10. Lava cools to form -(2006-15) 5 a. igneous rock b. sedimentary rock c. metamophic rock d. sandstone

Lava cools to form igneous rock, which is created when molten rock solidifies either beneath the Earth's surface (intrusive) or after erupting from a volcano (extrusive). This process can produce a variety of rock types, including basalt and granite, each with distinct textures and mineral compositions. Understanding igneous rocks is not just for geology enthusiasts! These rocks play a crucial role in our environment and architecture. For instance, basalt, commonly used in concrete, is both durable and abundant, while granite’s beauty makes it a popular choice for countertops and monuments. So, next time you admire a stone structure, remember the fiery journey it endured!