Question

the approximate diameters of five planets are listed in the chart below. which list shows the planets in order from the least diameter to the greatest diameter?

planet	earth	mars	saturn	uranus	neptune

Explanation:

Step1: Compare the values

We have Earth diameter = 12800, Mars diameter = 6800, Saturn diameter = $1.2\times10^{5}=120000$, Uranus diameter = $5.1\times10^{4}=51000$, Neptune diameter = $5.0\times10^{4}=50000$.

Step2: Arrange in ascending order

Comparing the values, we get 6800 (Mars) < 12800 (Earth) < 50000 (Neptune) < 51000 (Uranus) < 120000 (Saturn). So the order from least to greatest is Mars, Earth, Neptune, Uranus, Saturn.

Answer:

Mars, Earth, Neptune, Uranus, Saturn