Explanation:

- Geophysics: It studies the physical processes and properties of Earth. It focuses on the Earth's magnetic and gravitational fields, internal structure, and electricity.

- Geology: This is the study of Earth's structure, evolution, and dynamics, as well as its natural mineral and energy resources. It deals with the solid, liquid, and gaseous materials that make up the planet.

- Geology is the correct option.

- Geography: It examines the Earth's landscapes, environments, and the relationships between people and their environments. It is more about the surface and human interaction.

- Geometry: This is a field of mathematics concerned with questions of shape, size, relative position of figures, and the properties of space.