The oceans and the atmosphere are both part of the Carbon Cycle, the Cycle through which the carbon dioxide flows from different spheres of Earth. The atmosphere helps via processes such as photosynthesis. The carbon dioxide must be available in the atmosphere, so plants can capture it and use it to conduct photosynthesis. The atmosphere can also help because all animals need to release carbon dioxide through respiration, and the carbon dioxide goes to the atmosphere. In those and many other ways, the atmosphere helps. When levels of carbon dioxide are too high in the atmosphere, the oceans can absorb a lot of it and use it in processes like the formation of carbonic acid. So, the oceans also help in its own way. Therefore, the correct answer is true.T