This book, "100,000 Whys: Seas and Oceans" by Han Kedi, invites readers on an immersive journey into the enigmatic depths of our planet's aquatic realms. It meticulously addresses a multitude of intriguing questions about the vast oceans, their unique ecosystems, and the incredible life forms inhabiting them. From understanding the dynamics of ocean currents and the mysteries of deep-sea trenches to exploring the vibrant life of coral reefs and the impact of environmental changes, this book offers a comprehensive and accessible guide. It ignites curiosity and fosters a deeper appreciation for the vital role oceans play in sustaining life on Earth.