Final answer:
Granite is a coarse-grained, intrusive igneous rock that is widely distributed on Earth's continental crust. It is composed of quartz, feldspars, and amphibole/biotite.
Step-by-step explanation:
Granite is a coarse-grained, intrusive igneous rock that is widely distributed on Earth's continental crust. It is composed of quartz, feldspars, and amphibole/biotite. When magma stays inside the Earth and cools slowly, it forms intrusive rocks such as granite. These rocks have big crystals and are typically found in mountainous regions.