What Is a Planetary Nebula

question 34

Multiple Choice

What is a planetary nebula?

• A) a planet surrounded by a glowing shell of gas
• B) the disk of gas and dust surrounding a young star that will soon form a star system
• C) the ejected envelope of a giant star surrounding the remnant of a star
• D) a type of young, medium-mass star
• E) leftover gas from a supernova explosion

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Definitions:

Subsidies

Financial support from the government to businesses, individuals, or other governmental bodies to encourage or maintain an activity that has a public good.

Liability Rules

Legal principles that determine how the responsibility for damages or losses is allocated among parties in legal disputes.

Pollution

The occurrence or entry of harmful or toxic materials into the environment.

Taxing

The process of levying charges on citizens or organizations by a government to fund public services and initiatives.