What Is Important About the Habitable Zone Around a Star

question 50

Multiple Choice

What is important about the habitable zone around a star that makes astronomers believe life could exist there?

• A) The level of UV radiation from the star is minimal in the habitable zone.
• B) Only in the habitable zone can complex organic molecules be found.
• C) Planets in the habitable zone will always have an oxygen atmosphere.
• D) In the habitable zone, liquid water can exist on the surface for long periods of time

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