A Radio Galaxy Whose Lobes Are Swept Back as If

question 22

Multiple Choice

A radio galaxy whose lobes are swept back as if forming a tail.This probably indicates that:

• A) this is evidence for intergalactic matter.
• B) the galaxy is about to evolve into a spiral.
• C) the galaxy is isolated, not part of a cluster.
• D) the galaxy is moving towards Earth.
• E) there must be another galaxy nearby.

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Definitions:

Productivity

The efficiency with which goods and services are produced, typically measured in terms of output per labor hour.

Living Standards

Refers to the level of wealth, comfort, material goods available to a person, group, or nation, similar to the standard of living.

Human Capital

The collective skills, knowledge, and other intangible assets of individuals that can be used to create economic value.

Productivity

A measure of the efficiency of production, often calculated as the ratio of output to inputs in the production process.