What Is a Planetary Nebula

question 63

Multiple Choice

What is a planetary nebula?

• A) a disk of gas surrounding a protostar that may form into planets
• B) what is left of its planets after a low-mass star has ended its life
• C) the expanding shell of gas that is no longer gravitationally bound to the remnant of a low-mass star
• D) the molecular cloud from which protostars form
• E) the expanding shell of gas that is left when a white dwarf explodes as a supernova

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Definitions:

Unanimity

Complete agreement among all members or parties involved.

Consensus

A general agreement among the members of a group or community, often achieved through discussion and compromise.

Outside Experts

Individuals or entities with specialized knowledge or expertise in a particular field, hired to provide insight or solutions that may not be available within the hiring organization.

Creative Thinking

The ability to consider something in a new way, involving the generation of new ideas or concepts, or new associations between existing ideas or concepts.