What Is a Protostar

question 109

Multiple Choice

What is a protostar?

• A) a sphere of gas after collapse from an interstellar cloud but before nuclear reactions have begun
• B) a small interstellar cloud before it collapses to become a star
• C) a star near the end of its life before it explodes as a supernova
• D) a shell of gas left behind from the explosion of a star as a supernova

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Definitions:

More Concrete

Pertains to being specific, tangible, and detailed, often referring to ideas or concepts that are clearly defined and observable.

Initially Difficult

Describes tasks or challenges that appear hard or demanding at the outset but may become easier with effort and practice.

Conscious Attention

The deliberate focus of mental effort and awareness on specific stimuli or tasks in one's environment.

Automatization

The process of making actions or processes operate automatically.