The sea not labeled is the North sea
What is a sea
A sea is a large body of saltwater that is partially enclosed by land. Seas are typically smaller than oceans and are often partially connected to an ocean or enclosed by landmasses.
They can vary significantly in size, depth, and characteristics. Seas play vital roles in the Earth's ecosystem, influencing climate patterns, supporting marine life, and providing resources for human activities such as fishing, transportation, and trade.
Seas can be categorized based on their geographical location, such as the Mediterranean Sea, the Arabian Sea, or the Caribbean Sea.