. then we come to the currents . ocean currents are like river of water flowing through the ocean. They are warmer or cold than the water through which they pass .because they are important to man . They are always being studied
As we all know there are countless kinds of plants and animals living in the oceanograpghers spend a great deal of time on this subject too. how deep in the ocean in various places! this also is very important to man and there are scientists. Who are concerned only with the question of ocean depth