a large glacier forming on a mountain strong winds wearing away a rock cliff a major earthquake happening in a mountain range many waves on a lake moving pebbles onto a beach
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: Which process causes the fastest changes to the surface of Earth?
Possibilities:
- a large glacier forming on a mountain
- strong winds wearing away a rock cliff
- a major earthquake happening in a mountain range
- many waves on a lake moving pebbles onto a beach

a major earthquake happening in a mountain range