Many geologic processes and events are due to . A. erosion B. deposition C. weathering D. plate tectonics Tectonic plates move due to forces. A. internal B. external C. destructive D. constructive

1. Plate tectonics

2. Internal forces

Explanation:

Mainly earths main geological structures and events are caused by plate tectonic, like how we get mountains and earthquakes. These forces come within the earth, the mantle and the core. Hence forth, internal forces.