The Ocean Originated From

Multiple Choice

The ocean originated from:

A) volcanic gases.
B) radioactive heating of the Earth's interior, and the heating of the surface by meteorites striking and melting the outer layers of the Earth.
C) capture by the Earth's gravity of water molecules in space.
D) volcanic gases, radioactive heating of the Earth's interior, and a barrage of icy comets or asteroids striking and melting the outer layers of the Earth.