The process of star and planet formation begins with a large cloud of gas and dust called a solar nebula. Rank the formation events that occur within a cloud from earliest to latest. Rank from earliest to latest. To rank items as equivalent, overlap them.
a. The cloud is large, cool, and slowly rotating
b. The cloud collapses into a disk
c. Competing rotational and gravitational forces begin to flatten the cloud
d. The cloud becomes denser, heats up, and rotates faster
e. The cloud starts to contract under the influence of gravity