caption: The image shows a black and white drawing of a diagram of the ocean, with text written on it. The diagram is composed of a series of concentric circles, each representing a different part of the Earth's atmosphere. The circles are labeled with the names of the different parts of the earth, such as the oceans, landmasses, and other celestial bodies. The text accompanying the diagram provides further information about the different types of ocean currents and their effects on the environment.