Question

question 6
1 pts
one or more of the important processes in forming a star is:
(pick all that apply) 1 pts
the conservation of angular momentum
gravitational contraction
conservation of turbulence
conservation of fusion

Explanation:

• Conservation of angular momentum: As a gas cloud collapses to form a star, angular momentum conservation causes it to spin faster (like an ice - skater pulling in their arms). This affects the shape and structure of the forming star.
• Gravitational contraction: Gravity pulls gas and dust in a nebula together. As the cloud contracts, it heats up. This is a fundamental process in the initial stages of star formation, leading to the core becoming hot and dense enough for nuclear fusion (in the case of stars like the Sun).
• Conservation of turbulence: Turbulence is not a conserved quantity in the context of star - forming processes in a way that is a key, named "conservation" principle for star formation. Turbulence can play a role in the initial fragmentation of gas clouds, but it is not a conserved entity like angular momentum.
• Conservation of fusion: Fusion is a process (not a quantity to be conserved in the sense of a conservation law like angular momentum). Nuclear fusion occurs in the core of a star after it has formed (from the protostar stage due to gravitational contraction heating the core), but there is no "conservation of fusion" principle.

Answer:

• the conservation of angular momentum
• gravitational contraction