Why is the sun and the ocean important to the water cycle?

Yes it is. The reason why this is, is because some organisms create their own food which then another animal eats that animal that made its own food from sunlight. The process keeps going on and on and on. Also if there was no sunlight all aquatic life would die because there is no food for the animal that produces its own food. Which leads to all the other animals dieing because the animal that produce his or her food is dead.