Earth and Venus are often called sister planets; in which ways are they most alike?

Question

Quizplus · Accepted Answer

Earth and Venus are most alike in terms of their size, density, and surface gravity. Both planets are rocky and similar in size, with Venus being only slightly smaller than Earth. They also have similar densities, which suggests that they have similar compositions. Finally, their surface gravities are nearly identical, indicating that their masses are also similar. While there are some similarities between the atmospheres and surface properties of Earth and Venus, their size, density, and surface gravity are the most significant factors that make them sister planets. Earth and Venus are most alike in terms of their size, density, and surface gravity. They are both rocky terrestrial planets with similar sizes and densities, and their surface gravities are also similar. While they have some similarities in their atmospheres and surface conditions, their differences in these aspects are significant enough that they are not considered to be the most similar.  Therefore, option B is the best choice.

Earth and Venus Are Often Called Sister Planets; in Which