More expensive flooring options include natural stone, which can easily be up to $50 per square foot, and hardwood floors, which are rarely cheaper than $12 per square foot including the price of installation.hat you will need in the bathroom will differ substantially from what you need in the bedroom. Tile is a smart choice in rooms with water and humidity such as the laundry room, kitchen and bathroom. Average costs of porcelain and ceramic are $5 to $12 per square foot, including the price of installation.
The layer that is thinnest under the oceans is the crust. While it  is thinnest in those underwater regions, it is the thickest in the  regions where mountains are.
Earthâs surface. The asthenosphere is surrounded by the lithosphere, the. outermost layer of the Earth, which varies from just a few kilo-. meters in thickness at the oceanic ridges to 100 to 150 km in the. older parts of the ocean basins and up to 250 to 300 km under. the continents.