Planet Data Analysis Quick Check

Question

4 of 44 of 4 Items

Question
The table shows properties of some planets in the solar system.

Property Venus Earth Mars Jupiter Saturn Neptune
Average Distance from the Sun (AU) 0.72 1.0 1.5 5.2 9.5 30
Length of Year (Earth years) 0.62 1.0 1.9 11.9 29.4 164.8
Time for One Rotation (Earth days) 243 1.0 1.03 0.41 0.44 0.67
Mass (compared to Earth) 0.80 1.0 0.1 318 95 17
Surface Gravity (compared to Earth) 0.90 1.0 0.38 2.53 1.06 1.14
Size (compared to Earth) 0.94 1.0 0.53 11.0 9.1 3.9
Average Surface Temperature (ºC) 462 14 –62 –145 –140 –214
Number of Moons 0 1 2 79 82 14
Which planet is most similar in size to Earth?

(1 point)
Responses

Neptune
Neptune

Venus
Venus

Jupiter
Jupiter

Mars
Mars
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Answer 1

The planet that is most similar in size to Earth, based on the data provided, is Venus.

In the table, Venus has a size ratio of 0.94 compared to Earth, which indicates that its size is very close to that of Earth. In comparison:

• Mars has a size ratio of 0.53,
• Jupiter has a size ratio of 11.0 (much larger than Earth),
• Saturn has a size ratio of 9.1 (also much larger),
• Neptune has a size ratio of 3.9 (larger than Earth).

Therefore, the correct answer is Venus.