Planetary scientists have long debated the origin of the material that
formed Earth. Although our planet sits in the inner Solar System, many researchers have estimated that between 6 and 40 percent of its building material came from beyond Jupiter in the outer Solar System.
Using a new analytical approach, the team reached an unexpected conclusion. Earth appears to have formed entirely from material that originated in the inner Solar System.
Material from beyond Jupiter likely makes up less than 2 percent of Earth’s mass, and may not have contributed at all. The findings were published in Nature Astronomy.
Bower adds: “We were truly astonished to find that the Earth is composed entirely of material from the inner Solar System distinct from any combination of existing meteorites.”
It also indicates that volatile elements such as water were likely already present in the inner Solar System."
SciTechDaily
In other words the inner planets were CREATED with the same substance.
As for "water" on the solar system - And the Spirit of God moved upon the face of the waters. Genesis 1:2
