The best evidence that erosion has taken place would be provided by

There are more indicators that erosion has taken place, but the most obvious for the eye is that the place where there's erosion changes it's physical appearance. This change in physical appearance is manifested by losing land mass and thus the place is losing in height, as well as getting flatter and flatter over time.

Answer: the philippines has suffered from an inexhaustible number of deadly typhoons, earthquakes, volcano eruptions and other natural disasters. this is due to its location along the ring of fire, or typhoon belt – a large pacific ocean region where many of earth's volcanic eruptions and earthquakes occur.