Pollution can come from things like cars and oil. It can also come from things like factories.

Human activity can have detrimental effects on the overall health of the ocean ecosystem. It often leads to water contamination, which is harmful to marine life. The water becomes polluted and unsuitable for marine flora and fauna, resulting in a significant death toll among fish due to poor water quality and the lack of clean air. Air pollution, often as a result of smoke and steam emitted by boats, poses a formidable threat to the ocean and its inhabitants. The toxic gases released can create an unsafe environment for marine life. Furthermore, parts of boats can accidentally fall into the water, trapping sea creatures and contributing to their death toll. Additionally, small marine animals are at risk as they can become entangled in fishing nets or hooked accidentally. These incidents can significantly disrupt the life cycle of these smaller creatures. Moreover, ocean life is threatened by the presence of human-produced waste. Abandoned or discarded items can pose a threat to marine animals, many of whom can become ensnared or consume these harmful materials. Lastly, pollution is a severe threat to ocean life. Man-made pollutants can compromise water quality, harm marine life forms, and disrupt the delicate balance of the entire ocean ecosystem. Environmental protection and responsible disposal of waste are key to preserving the health of our oceans.