GEOG 203 CH. 2
Terms in this set (5)
Our Solar System formed from a large, slowly rotating, collapsing cloud of dust and gas.
When did our Solar System begin to form?
5 billion years ago
How did our Solar System begin to form?
A large cloud of dust and gas began to contract under the force of gravity.
What is a nebula?
a large, diffuse cloud of dust and gas in space
Where did the energy of the Sun come from originally?
thermal energy that was converted from the gravitational energy of the original nebula collapse
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