Based on the Chemical Abundances and Velocities of Stars in the Milky

question 92

Multiple Choice

Based on the chemical abundances and velocities of stars in the Milky Way's disk and halo, we can conclude that the protogalactic fragments that came together to form the galaxy merged when the fragments had:

• A) not yet formed stars
• B) converted most of their gas into stars
• C) begun forming stars
• D) each formed a supermassive black hole at their center
• E) gathered a lot of dark matter from surrounding space

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Definitions:

Probability

A measure of the likelihood that a specific event will occur, often expressed as a number between 0 and 1.

Random

Manifesting without any discernible pattern or strategy, happening randomly.

Presale Testing

The process of evaluating the potential market success of a new product or service before its full-scale launch.

Probability

The quantification of an event's occurrence probability, expressed with a number from 0 to 1.