The nebular theory also predicts that thecloud will flatten into a disk as it sh

Question

The nebular theory also predicts that thecloud will flatten into a disk as it shrinks in size. Which of thefollowing best explains why the collapsing cloud should form adisk?
Colliding cloud particles exchange angularmomentum and, on average, end up with the rotation pattern for thecloud as a whole. As a star forms near the cloud center, its windblows away material that is not aligned with its equator, therebyleaving an equatorial disk of material. All collapsing objects tend to flatten into adisk, regardless of their rotation. Gravity pulls more strongly on material alongthe rotation axis than perpendicular to it, bringing this materialdownward into a disk. The nebular theory also predicts that thecloud will flatten into a disk as it shrinks in size. Which of thefollowing best explains why the collapsing cloud should form adisk?
Colliding cloud particles exchange angularmomentum and, on average, end up with the rotation pattern for thecloud as a whole. As a star forms near the cloud center, its windblows away material that is not aligned with its equator, therebyleaving an equatorial disk of material. All collapsing objects tend to flatten into adisk, regardless of their rotation. Gravity pulls more strongly on material alongthe rotation axis than perpendicular to it, bringing this materialdownward into a disk.

Explanation / Answer

There a few reasons however "The law of conservation ofenergy" in the only one on the list and is the majorfactor.

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