Question 1:
The Earth is divided into the inner and outer core, mantle, asthenosphere, and the lithosphere.
The lithosphere contains the upper parts of the mantle and the crust, and is broken into pieces called tectonic plates that move, collide and slide apart over time.
Tectonic plates move when partially molten rock in the asthenosphere flows with hot material rising and cooler material sinking. Molten rock in the mantle heats and rises to the upper mantle and asthenosphere, eventually causing it to cool and sink down with convection currents. The process repeats.
Question 2:
Evidence/explanation: Geologic occurences such as earthquakes, volcanoes, mountain ranges, and valleys occur near faults, meaning that they occur near plate boundaries. This suggests that there may be some movement within tectonic plates that can be linked to these occurences.