Final answer:
Dumping or pumping sand from elsewhere onto an eroding shoreline is known as beach nourishment or beach replenishment. It involves bringing in sand to create a new beach or widen an existing one. While it can protect beachfront property and support local economies, it may also have negative impact on marine ecosystems.
Step-by-step explanation:
Dumping or pumping sand from elsewhere onto an eroding shoreline is known as beach nourishment or beach replenishment. This process is commonly used to create a new beach or widen an existing beach in order to combat erosion. It involves bringing in sand from offshore or other locations and depositing it onto the eroding shoreline using large dredging equipment or pumps.
Beach nourishment projects can help protect valuable beachfront property, provide recreational space for tourists, and support local economies. However, these projects can also have negative impacts on marine ecosystems. The dredging process can damage reefs, sea grass beds, and shorelines, and may harm marine life.
Learn more about beach nourishment