howe much of the ocean has been explored

Answer 1

As of now, it's estimated that about 20% of the world's oceans have been mapped and explored in detail. The remaining 80% remains largely uncharted and unexplored, highlighting the vastness and mystery of the ocean. Various organizations and research programs are actively working to increase our understanding of marine environments, but significant portions of the ocean, especially deep-sea areas, continue to be difficult to access and study. This lack of exploration presents both challenges and opportunities for marine science and conservation.