Which of the Following Is Evidence That the Formation Process

question 4

Multiple Choice

Which of the following is evidence that the formation process of our Galaxy may have included collisions with smaller neighbor galaxies?

• A) the presence of millions of new stars, recently formed from clouds of gas and dust
• B) the existence of supernova remnants, such as the Crab Nebula, in the Galaxy's disk
• C) the observation that objects outside the orbit of the Sun are moving around the Galaxy faster than we expected
• D) the observation that globular cluster are arranged in a spherical "halo" around the Galaxy
• E) the observation of long moving streams of stars that continue to orbit through our Galaxy's halo

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Definitions:

Public Goods

Goods that are non-excludable and non-rivalrous, meaning they can be used by many people simultaneously without depletion.

Pareto Optimal

A scenario in resource distribution where it's impossible to benefit one individual through reallocation without causing harm to another individual.

Public Goods

Goods that are non-excludable and non-rivalrous, meaning that no one can be effectively excluded from use and one person's use does not diminish another's.

Private Consumption

The spending on goods and services by individuals or households, as opposed to public or government spending.