Coastal landforms such as beaches, bays, capes, and peninsulas are shaped by the erosion and deposition of sediments from waves and tides. Coastal environments support a wide variety of plant and animal life, including mangrove forests, coral reefs, and migratory bird populations. Human activities like fishing, trade, tourism and urban development have drawn large populations to coastal areas but have also threatened coastal ecosystems through pollution, climate change, and overexploitation of resources. Coastal regions face risks from natural hazards exacerbated by sea level rise.