Question

summarize it! drag and drop the words or phrases that accurately complete the summary. about 4.6 billion years ago, the started as a giant cloud of gas and dust called a solar. some unknown event, perhaps a supernova, caused a collapse at the center of the cloud. most of the dust and in the cloud collapsed on itself. it formed a of gas and dust. the heat of this collapse caused fusion to occur, resulting in the creation of the. gas gravitational sun spinning disk nebula solar system

Explanation:

The solar system began as a solar nebula (a giant gas - dust cloud). A gravitational collapse at its center due to an unknown event (perhaps a supernova) caused dust and gas to collapse, forming a spinning disk. Fusion from the heat of this collapse led to the creation of the Sun.

Answer:

About 4.6 billion years ago, the solar system started as a giant cloud of gas and dust called a solar nebula. Some unknown event, perhaps a supernova, caused a gravitational collapse at the center of the cloud. Most of the dust and gas in the cloud collapsed on itself. It formed a spinning disk of gas and dust. The heat of this collapse caused fusion to occur, resulting in the creation of the Sun.