$................................$Explore the principles of coastal engineering and shoreline protection. Discuss the processes influencing coastal erosion, sediment transport, and shoreline evolution, and their implications for coastal infrastructure and habitats. Explain the design considerations for coastal structures such as seawalls, revetments, and breakwaters, including factors such as wave forces, stability, and environmental impacts. Analyze the strategies for coastal zone management and adaptation to sea$-$level rise and climate change.