Final answer:
Glacial depositing of eskers is an example of legacy effects of natural processes on landscape structure, which significantly alters landscapes and supports primary succession.
Step-by-step explanation:
When a stream that flows through or under a glacier leaves deposits of soil and rock, creating a long, winding hill called an esker after the retreat of the glacier, this is an example of legacy effects of natural processes on landscape structure. The formation of eskers is related to the geological and biogeomorphological alterations caused by the natural movement and melting of glaciers. Glacial processes substantially transform the landscape by transporting Earth materials and altering topographies, which can lead to the development of new soils and ecological communities through primary succession.