Shorelines are the areas where land meets a body of water, such as oceans, rivers, or lakes. They can vary greatly in shape and size, influenced by factors like tides, waves, and erosion. Shorelines are important ecosystems that support diverse wildlife and plant species, providing habitats for creatures like crabs, seabirds, and mangroves. The characteristics of shorelines can change over time due to natural processes and human activities. Erosion can wear away land, while sediment deposition can create new landforms. Understanding shorelines is crucial for managing coastal areas and protecting them from issues like pollution and climate change.