The two statements that support the concept that the origins of Earth's water can only be explained by a combination of theories are:
- Comets, asteroids, and solar nebulae have all been found to have water in or on them.
- The components to make water are found within Earth’s crust and in solar winds, which contain hydrogen.
These statements indicate that multiple sources—celestial bodies and elements present on Earth—contribute to the origins of water on our planet.