What is the focus of plate tectonics?

The focus of plate tectonics is primarily on examining the movement and structure of the earth's crust plates. This scientific theory explains how the lithosphere, which is made up of various tectonic plates, moves and interacts with each other as they float on the semi-fluid asthenosphere beneath them. The movement of these plates is responsible for many geological phenomena, including earthquakes, volcanic activity, mountain building, and the creation of oceanic trenches. Through the study of plate tectonics, geologists can gain insights into how the Earth's surface has evolved over time and how it continues to change. This knowledge is crucial for understanding the geophysical processes that shape our planet.

The other options, such as studying the atmosphere's weather patterns or investigating ocean currents and tides, are unrelated to the core principles of plate tectonics. Similarly, while researching mineral composition of rocks is important in geology, it does not directly pertain to the movements and interactions of tectonic plates.