Answer:
The reason we on Earth have equinoxes at all is because the Earth's axis is tilted. ... Earth's axial tilt also means that our planet's equator is tilted relative to the plane of its orbit around the Sun – what astronomers call the “plane of the ecliptic”.
According to the principle of cross-cutting relationships, an intrusive rock body is younger than the rocks into which it intrudes. A fault in layers of rock is younger than the rock into which it intrudes is the main principle of cross-cutting.
Make it obtuse or draw a really big right angle but if i were you i would just do the obtuse angle
So, the Earth has different layers. If you were to open it up, you'd see the crust, mantles, core, etc...
From what I know studying the Earth's interior, I would say C. Volcanoes because of the heat coming from the layers of the Earth.
If you would like further explanation, or if I'm wrong, let me know, and I can elaborate or re-evaluate and fix it! Hope this helps!!