Question

the study of the origin and structure of rock is done by​

Answer 1

Explanation:

Petrology, scientific study of rocks that deals with their composition, texture, and structure

Answer 2

Answer:

Petrology, scientific study of rocks that deals with their composition, texture, and structure; their occurrence and distribution; and their origin in relation to physicochemical conditions and geologic processes. It is concerned with all three major types of rocks—igneous, metamorphic, and sedimentary.