Why did the solar nebula flatten into a disk?
A) The force of gravity pulled the material downward into a flat disk.
B) It flattened as a natural consequence of collisions between particles in the nebula, changing random motions into more orderly ones.
C) As the nebula cooled, the gas and dust settled onto a disk.
D) The interstellar cloud from which the solar nebula formed was originally somewhat flat.
Question 2
Spring tides occur only at new Moon, when the Moon and Sun pull together.
Indicate whether the statement is true or false