________ is the natural phenomenon, caused by an unlimited and unprecedented rainfall.

Soil erosion is the process of soil being moved from one place to another by the action of wind or water. It can be caused by natural processes, such as rainfall and wind, or by human activities, such as deforestation and agriculture.

Cyclones are a type of tropical cyclone that forms over warm waters in the tropics. They are characterized by strong winds, heavy rain, and storm surges.

Heightening is the process of making something higher. It can be used to describe the construction of a taller building, or the process of raising the level of a road or other infrastructure.

In conclusion, the correct answer to the question “__ is the natural phenomenon, caused by an unlimited and unprecedented rainfall” is: C. Floods.