You are presented with the question "What can cause landslides?" and the following answer choices: - The flow of water - loose soil - Drought - deforestation - Adequate subsurface drainage - mouth of rivers - Physical weathering - Lack of rain Now knowing that erosion can cause a landslide and and the erosion caused by the unimpeded flow of water is an example of unintentional change, choose the best answer.
A:
The flow of water