Geology describes the rocky parts of the Earth’s:

Explanation: Correct Answer: Geology is the science that studies the Earth's solid material, especially its rocky parts, which primarily include the crust. The Earth's crust is the outermost layer, composed of various types of rocks. Other Options: (A) Core - The Earth's core is mostly made up of iron and nickel, not the rocky materials geology primarily studies. (B) Mantle - The mantle is beneath the crust and consists mainly of silicate minerals but is not the main focus of traditional geological study. (D) Current - This option is unrelated to the physical structure of the Earth.