Erosion

1. from:

1.1. WATER

1.1.1. causes:

1.1.1.1. Streams to become rivers (meandering rivers)

1.1.1.2. Sediments to be carried away (Gully Erosion

1.2. WIND

1.2.1. causes:

1.2.1.1. Change in landscaping overtime (Eg: Desert Pavement)

1.2.1.2. Exposure of new rock to due to old rock being taken off of surface (Abrasion on surface)