The inner core.
The inner core
none of the inner planets
inner
The inner planets are Mercury, Venus, Earth, and Mars. They are "inner" because the are the first 4 planets from the Sun.
The scientific name for the Earth's inner core is "Earth's solid inner core."
The inner portion of the hair is the cortex and the inner-most portion is the medulla.
The inner portion of the hair is the cortex and the inner-most portion is the medulla.
inner core
you depend on your inner
inner
It is an inner planet.