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 . spinning disk sun solar system gas gravitational nebula

Explanation:

About 4.6 billion years ago, the solar system originated from a solar nebula. A gravitational collapse at its center due to an unknown event (perhaps a supernova) caused most of the gas and dust to collapse and form a spinning disk. Fusion then created 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.