Hot, Low-Density Gas Can Be Detected in Galactic Clusters Through

question 54

Multiple Choice

Hot, low-density gas can be detected in galactic clusters through X-ray emission. The gas is important in understanding dark matter because ____.

• A) dark matter is responsible for heating the gas
• B) dark matter must make the cluster massive enough to hold on to the hot gas
• C) the gas may be the source of dark matter
• D) the gas is clumped in empty places between galaxies where there is more dark matter
• E) the gas is produced by dark matter

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Definitions:

Productive Capacity

Refers to the maximum output a system, economy, or machine can produce over a period of time under normal conditions.

Supply of Land

The total availability of land resources that can be used for various purposes, often considered perfectly inelastic.

Perfectly Inelastic

A situation where the quantity demanded or supplied of a good does not change in response to a change in price.

Relatively Elastic

Describes a situation where the demand for a product is sensitive to changes in price, meaning a small price change can lead to a large change in quantity demanded.