We divide up the earth's seas into five what, which are really all interconnected?
ecosystems
lakes
continents
oceans
People divide up the seas into five oceans. But they are really all interconnected. Even so, they are all very different. This ocean is near a shore and is obviously in a cold region. It appears to be a good habitat for whales! No matter what, the oceans have a huge influence on the planet, locally and as a whole.