Praxis 5511 Practice Test Practice Question
Of the following planets, which is most similar to Earth in size and mass?
Correct Answer: D
Rationale: Earth and Venus are often referred to as "sister planets" due to their similar size and mass. Venus has a diameter of about 12,104 km and a mass of approximately 0.82 times that of Earth, making it the closest match in terms of physical characteristics.
Mercury, while closer to Earth in size than Venus, is significantly smaller and less massive, with a diameter of about 4,880 km. Saturn and Jupiter, on the other hand, are gas giants with much larger diameters (about 120,536 km and 139,822 km, respectively) and masses that far exceed that of Earth, making them unsuitable comparisons.
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