terrestrial
"The Inner Planets" is the common term for the four planets closest to our sun.
The term used to describe the Sun and the planets that orbit around it is "solar system."
Mercury venus earth mars The inner solar system?
Nibble
The term `gas giant` is used to describe a type of planet in itself, large planets further out from the sun that are mainly made from hydrogen and helium.
Menarche is the term used to describe a woman's first period.
vulnerable
Granulation
recession
"solar system" is the term used to describe planets orbiting a star. We know that planets also orbit binary and tertiary star systems, these would be different kinds of solar systems.
The first four terms are 3 9 27 81 and 729 is the 6th term.
When they discovered pluto did not follow the full criteria to be considered a planet. They needed a different scientific term to describe “planets” like pluto.