Question

on the basis of its diameter, neptune is the ______ largest planet in
the solar system.

a third

b second

c fourth

d first

Explanation:

The planets in the Solar System ranked by diameter from largest to smallest are Jupiter (1st), Saturn (2nd), Uranus (3rd), Neptune (4th), Earth (5th), etc. Neptune's diameter places it 4th.

Answer:

c. Fourth