Question

el capitan is a rock formation in california. it is more than 3,000 feet tall. el capitan is spanish for the captain. el capitan is made of granite, which formed through the cooling of magma. the rock in the formation is about 100,000,000 years old. until about 1,000,000 years ago, the area was covered by glaciers. el capitan get its shape from erosion by glacial ice. what type of rock is el capitan made of? metamorphic igneous sedimentary

Explanation:

文中明确提到“El Capitan is made of granite, which formed through the cooling of magma.”，花岗岩（granite）是岩浆冷却形成的，属于火成岩（igneous rock）。

Answer:

B. igneous