Question

what prevent the water of the seas and oceans from the splashing out​

Answer 1

The oceans are, by far, the largest reservoir of water on earth — over 96% of all of Earth's water exists in the oceans. Not only do the oceans provide evaporated water to the water cycle, they also allow water to move all around the globe as ocean currents. Oceans are the storehouses of water nature uses to run the water cycle.

Note: This section of the Water Science School discusses the Earth's "natural" water cycle without human interference.

Answer 2

Answer:

The oceans are, by far, the largest reservoir of water on earth — over 96% of all of Earth's water exists in the oceans. Not only do the oceans provide evaporated water to the water cycle, they also allow water to move all around the globe as ocean currents. Oceans are the storehouses of water nature uses to run the water cycle.