What Defines the Habitable Zone Around a Star

question 61

Multiple Choice

What defines the habitable zone around a star?

• A)the region around a star where rocky planets can form
• B)the region around a star outside of its hot, tenuous corona
• C)the region around a star where its ultraviolet radiation is too weak to destroy biological organisms on a planetary surface
• D)the region around a star where liquid water can exist on planetary surfaces
• E)the region around a star where humans can survive

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Definitions:

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