Final answer:
Plate tectonics is a theory that explains the movement of Earth's plates and the trend in rock ages.
The theory states that the crust is divided into tectonic plates, which move slowly over time and result in the formation of mountains and other geological features. This theory also helps us understand why younger rocks are typically found on top of older rocks.
correct answer is A
Step-by-step explanation:
Plate tectonics is a theory that explains the movement of Earth's plates and the trend in rock ages. It states that the crust is divided into large segments called tectonic plates, which move slowly over time.
This movement leads to the formation of mountains, ocean basins, and other geological features.
The theory of plate tectonics helps us understand why younger rocks are generally found on top of older rocks, which is known as the principle of superposition.
correct answer is A