Why is Neptune Nicknamed The Last of the Gas Giant?

Answer 1

Neptune is the last planet in the solar system because pluto is too small to be a planet.

And also that there was a rumour about pluto being a moon of some planet but then the gravity to hold the planetoid was too weak so thats how pluto became a planet but its too small so now neptune is known as the last planet on the solar system

I hope this helps you :)

Answer 2

Mainly because after Neptune is Pluto which is not made of gas.

Answer 3

because they are three biggest planets in the solar system and they are gas, like earth is solid based, whereas the gas giants are gas based.- hope this helped