Some scientists believe the origins of Earth’s water can only be explained by a combination of theories. Which statements support this concept? Select the two correct answers.(1 point)

Question

Responses

Comets, asteroids, and solar nebulae have all been found to have water in or on them.
Comets, asteroids, and solar nebulae have all been found to have water in or on them.

Water vapor is found in the atmosphere, so it must have formed from condensation of early Earth elements.
Water vapor is found in the atmosphere, so it must have formed from condensation of early Earth elements.

Earth is young and has only a few impact craters due to being hit by comets and asteroids.
Earth is young and has only a few impact craters due to being hit by comets and asteroids.

Volcanic eruptions provide necessary carbon dioxide for photosynthesizing organisms, which in turn make oxygen.
Volcanic eruptions provide necessary carbon dioxide for photosynthesizing organisms, which in turn make oxygen.

The components to make water are found within Earth’s crust and in solar winds, which contain hydrogen.

Answer 1

The two statements that support the concept that the origins of Earth’s water can only be explained by a combination of theories are:

1. Comets, asteroids, and solar nebulae have all been found to have water in or on them.

2. The components to make water are found within Earth’s crust and in solar winds, which contain hydrogen.

These statements illustrate the idea that water on Earth may be derived from multiple sources, including extraterrestrial bodies and elements found within the planet itself.