Question

Where did all this water on the earth come from?

Answer 1

The origin of water on Earth, or the reason that there is clearly more liquid water on Earth than on the other rocky planets of the Solar System, is not completely understood. There exist numerous more or less mutually compatible hypotheses as to how water may have accumulated on Earth's surface over the past 4.5 billion years in sufficient quantity to form oceans.

Answer 2

•The earth water mostly comes from the asteroids

•Some of the water comes from the solar nebula.

•Moisture from the molten rocks and organic matters vaporise and condenses into the rain with cool air.

•In this form rain begun to fall and continued for several centuries.

•This resulted inthe forming of all the water bodies like seas rivers oceans etC.

•The water from these water bodies again evaporate and rain falls.

•This cycle continuously takes place.