The Image of Our Galaxy in Radio Emission from CO,mapping

question 6

Multiple Choice

The image of our galaxy in radio emission from CO,mapping the distribution of molecular clouds,is closest to the image of our galaxy in

• A)21-cm-line radio emission from atomic hydrogen.
• B)visible light,showing the edges of supernova bubbles.
• C)visible light,which is closest to how the night sky appears from Earth.
• D)X-rays from hot gas bubbles in the disk.
• E)infrared emission from interstellar dust grains.

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Definitions:

Diminish

To decrease or make smaller in size, importance, or intensity.

Excludability

The characteristic displayed by those goods and services for which sellers are able to prevent nonbuyers from obtaining benefits.

Consuming

Consuming involves using up goods or services by purchasing, eating, or utilizing them to satisfy needs or wants.

Good

A material item or service that satisfies a need or desire and is available for purchase or trade.