Which of the Following Does Not Accurately Describe What We

question 14

Multiple Choice

Which of the following does not accurately describe what we observe toward the Galactic center?

• A)At X- rays, we see faint emission from an accretion disk around a black hole.
• B)At radio wavelengths, we see giant gas clouds threaded by powerful magnetic fields.
• C)At infrared wavelengths, we see a massive star cluster.
• D)At optical wavelengths, we see a cluster of old, red stars.

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Definitions:

Efficient

The optimal allocation of resources to maximize the production of goods and services without wasting those resources.

Production Possibilities Frontier

A curve that shows the maximum efficient production level of one good for a given level of production for another, assuming fixed resources and technology.

Slope

In mathematics and economics, slope refers to the steepness, gradient, or inclination of a line, indicating the rate of change between two variables.

Production Possibilities Frontier

A curve depicting all maximum output possibilities for two or more goods given a set of inputs (resources, labor, etc.).