👉 Sealess is a scientific concept that refers to an ocean or body of water that does not contain any living organisms such as plants, animals, or microorganisms. Sealessness is considered one of the defining characteristics of oceans and is often associated with their vastness and depth. It is characterized by the absence of life in the ocean's surface layer, which includes the bottom, seafloor, and upper waters. This means that the ocean does not have any living organisms present at all.