The Oldest Extrasolar Planets Have Been Found in

question 16

Multiple Choice

The oldest extrasolar planets have been found in

• A) open clusters.
• B) black holes.
• C) globular clusters.
• D) the nucleus of our Galaxy.

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Definitions:

Differentia

The characteristic that distinguishes a thing or concept from others within the same category or group.

Genus

A classification ranking used in biology to group closely related species, denoting a higher level of organization above species.

Circular

Shaped like or nearly resembling a circle; having the form or attributes of a circle.

Differentia

The characteristic or set of characteristics that distinguishes one entity or concept from another within the same group or category.