Which Important Component Does a Planetary Nebula Contribute to the Interstellar

question 168

Multiple Choice

Which important component does a planetary nebula contribute to the interstellar medium?

• A) molecules such as NH₃ and CH₄, which contribute to giant molecular clouds
• B) UV light that photoionizes hydrogen. The hydrogen, on recombination, produces the red Balmer α light by which we see interstellar emission nebulae.
• C) rotational motion from the original star, which serves to concentrate interstellar matter into new stars and planetary systems
• D) nuclei of moderately heavy elements, major components of planets such as our own

Recognize the topic sentence in a paragraph.

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Relate historical events or figures to broader themes or lessons.

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Definitions:

Intellectual Property

Legal rights given to individuals or organizations over creations of the mind, such as inventions, literary and artistic works, designs, and symbols.

Intermediary

An entity or person that acts as a link between different parties in a business transaction.

Indirect Exporting

A business strategy where a company sells its products overseas through intermediaries instead of dealing with foreign markets directly.

Direct Exporting

The process of selling goods directly from a manufacturer to foreign markets without intermediaries.