Answer:
The ocean absorbs carbon dioxide from the atmosphere through a process called gas exchange.
Step-by-step explanation:
This occurs when carbon dioxide dissolves in seawater, creating bicarbonate ions that are used by marine organisms to build their shells and skeletons.
As these organisms die, they sink to the bottom of the ocean, taking carbon with them. Over time, this organic matter becomes buried in sediment layers, where it is stored for millions of years as fossil fuels like coal and oil.
On the other hand, when fossil fuels are burned or natural processes like volcanic eruptions occur, carbon dioxide is released into the atmosphere. This excess carbon dioxide can lead to climate change by trapping heat in Earth's atmosphere.