Fill in the Blanks Geology and rocksOnline version Complete the text about Geology and rocks. by Raquel Serrano Barrueta 1 geologists igneous three Earth Geology Rocks minerals is the study of the nonliving things that the is made of . and minerals are nonliving things in the Earth . People who study geology are called . Rocks are clusters of and other inorganic materials . There are main types of rocks : rocks , sedimentary rocks and metamorphic rocks .