No, it is not.
the solid portion of the earth
The crust.
The Earth's Crust
The Earth's Crust
lithosphere
The crust.
lithosphere
The gaseous part of the Earth is called the atmosphere. The solid portion of Earth is the geosphere, and the hydrosphere is the Earth's water component.
The most outer solid portion of the planet Earth is the crust.
Earth has a two-part core. The outer portion is molten while the inner portion is solid.
crust