Compared to other planets in the solar system, the Earth has significantly more water than Earth. So where did the water come from, which is so important for living things and occupies about 70% of the earth’s surface? This question is still controversial, and there are two possible theories that have been answered.
The first theory is that the earth has had some water since its inception. About 4.5 billion years ago, the solar system originated from a disk-shaped nebula containing gas and dust. At the beginning, the nebula contained ice, and the Earth and all the other planets owned some water from the beginning. These glaciers are said to have been together since the beginning of the world, were in the middle of the earth, and rose from the middle to the surface and formed the oceans.