Final answer:
If sea level rises and the shoreline migrates inland, a transgression has occurred. Sea level rise is a consequence of climate change, and it causes the coastline to retreat and increased flooding.
Step-by-step explanation:
If sea level rises and the shoreline migrates inland, a transgression has occurred. This phenomenon is a result of the rise of the mean sea level, which causes the coastline to retreat and increased flooding. Sea level rise is a consequence of climate change, as land-bound ice melts and ocean water thermally expands. It is an important topic within the field of Geography, specifically related to the study of coastal processes and environmental impacts.