Most of the water that fills Earth's oceans came from ____.
A) the outer regions of the Solar System
B) the collision with a Mars-sized object that formed the Moon
C) volcanoes
D) a gigantic flood

Question

Quizplus · Accepted Answer

Water on Earth is believed to have originated from icy bodies in the outer regions of the Solar System, such as comets and asteroids, which delivered water during the early formation of the planet.

Most of the Water That Fills Earth's Oceans Came from ____