What Is the Relationship Between the Kirkwood Gaps in the Asteroid

question 42

Multiple Choice

What is the relationship between the Kirkwood gaps in the asteroid belt and the Cassini division in the rings of Saturn?

• A) Both the Kirkwood gaps and the Cassini division are caused by large objects passing through swarms of smaller objects, sweeping out gaps in the swarms.
• B) Both the Kirkwood gaps and the Cassini division were discovered by observers from the same group; Kirkwood and Cassini both worked at the same observatory.
• C) Both the Kirkwood gaps and the Cassini division are caused by disruptions of the orbits of small objects by larger planets or moons. In both cases, the orbital distance of small objects in the gaps is related by simple fractions to the orbital distance to the disturbing object.
• D) Both the Kirkwood gaps and the Cassini division are caused by disruptions of the orbits of small objects by larger planets or moons. In both cases, the periods of the small objects are simple fractions of those of the larger disturbing object.

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European Colonies

Territories acquired and governed by European powers, often overseas, where they exploited resources and imposed their control over indigenous populations.

Native American Societies

The diverse cultures, languages, and communities of the indigenous peoples of North and South America.

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The pigmentation of someone's skin, primarily determined by genetic inheritance and exposure to the sun, which has historically been used as a basis for social classification and discrimination.