The marine environment refers to the vast body of saltwater that covers about 71% of the Earth's surface. It includes oceans, seas, and coastal areas, which are home to a diverse range of organisms, from tiny plankton to large whales. This environment plays a crucial role in regulating the planet's climate and supporting life. Marine ecosystems are characterized by various habitats, such as coral reefs, mangroves, and deep-sea trenches. These ecosystems provide essential services, including food production, carbon storage, and oxygen generation. Protecting the marine environment is vital for maintaining biodiversity and ensuring the health of our planet.