At What Point in Its Evolution Does a Protostar Stop

question 82

Multiple Choice

At what point in its evolution does a protostar stop shrinking and stabilize into a star?

• A) when nuclear processes generate enough energy and internal pressure to resist gravitational contraction
• B) when gravitational contraction has heated up the gas to the point where radiation pressure opposes gravity for the first time
• C) when the protostar has spun off enough of its matter and is spinning fast enough that centrifugal force opposes the gravitational contraction
• D) when nuclear reactions end in the star's core

---

Definitions:

Reasonable Doubt

A standard of proof in criminal cases, requiring jurors to be fully convinced of the defendant's guilt, beyond a level where logical and reasonable doubts about guilt exist.

Immunity

Legal protection or exemption from prosecution or being sued, often granted in specific circumstances or to certain individuals.

Cyber Fraud

Cyber fraud involves deceptive and illegal activities conducted over the internet, including scams, identity theft, and unauthorized financial transactions.

Sports Memorabilia

Items related to sporting events or personalities that are collected for their historical interest, sentimental value, or potential investment value.