Answer:
Like the atmosphere, the ocean transports and distributes heat on Earth, helping regulate the climate.
Step-by-step explanation:
The ocean and the atmosphere are connected, they both transport heat and create balance on Earth's climate. The only source of heat on Earth is solar radiaton, but since the Earth shape is round, it's distribution needs help to be balanced. Oceans can administrate and transport heat, and together with the atmosphere, they can provide the correct distribution of heat. Oceans can store much more heat than Earth, therefor the majority of thermal energy on Earth is provided by them.