It is neither. The densest layer is the inner core. The least dense layer is the crust.
The crust is the least dense portion of the solid Earth because it is the thinnest layer.
No. It is the most dense.
More dense. As a solid is formed the particles vibrate less and group closer together. One of the only exceptions to this is water. When water freezes and becomes a solid it becomes less dense which is why ice will float in your drink.
The solid state is usually the most dense (except water), followed by the liquid state, which is less dense than the solid, followed by the gas state, which is the least dense.
the core
That is the core of the earth.
A crust is a solid, dense or hard layer on a surface, or the outside of a loaf of bread.
Compact bone is dense and regular in appearance forming a solid hard protective layer.
It is neither. The densest layer is the inner core. The least dense layer is the crust.
the outer layer of bone it is dense and strong.
The core because it has the most pressure that squashes it into a solid (a solid in the Sun is opaque).
The crust is the least dense portion of the solid Earth because it is the thinnest layer.
This depends on how dense the solid is, and how dense the liquid is.
The core is the most dense layer
The troposphere is the closest to the Earth and most dense atmospheric layer
the less dense layer is on top and the more dense layer is below.