What is the difference between sea and ocean

The Sea and the ocean are just different terms that mean same thing

Explanation:

In terms of geography, seas are smaller than oceans and are usually located where the land and ocean meet. Typically, seas are partially enclosed by land. Seas are found on the margins of the ocean and are partially enclosed by land. ... Seas are smaller than oceans and are usually located where the land and ocean meet.

fe 55.85 g/mol and h2o 18.02 g/mol.