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

Question

Quizplus · Accepted Answer

The habitable zone around a star is defined as the region where temperatures are not too hot or too cold for liquid water to exist on the surfaces of rocky planets. This is considered a crucial characteristic for potentially supporting life as we know it. A planet within the habitable zone may still not be habitable due to other factors, but it is considered a necessary condition for habitability.

What Defines the Habitable Zone Around a Star