Question

what is responsible for the formation of water on earth?
a. volcanic outgassing
b. from the sun
c. always had water
d. collisions with meteors

Explanation:

To determine the correct answer, we analyze each option:

• Option A: Volcanic outgassing releases gases like water vapor, contributing to Earth’s water. However, another key source is meteorite collisions.
• Option B: The sun does not transfer water to Earth.
• Option C: Earth did not always have water; it formed over time.
• Option D: Collisions with meteors (especially icy ones) are a major theory for delivering water to Earth during its early formation. While volcanic outgassing is also a source, the question’s options and common scientific understanding prioritize meteorite collisions as a primary contributor to Earth’s initial water.

Answer:

D. Collisions with meteors