Structure of the Earth easily than does the upper mantle (chemical changes within the mantle may also be important). The viscosity of the mantle ranges between 10 and 10 Pa·s, depending on depth. In comparison, the viscosity of water is approximately 10 Pa·s and that of pitch is 10 Pa·s. The source of heat that drives plate tectonics is the primordial heat left over from the planet’s formation as well as the radioactive decay of uranium, thorium, and potassium in Earth’s crust and mantle. The average density of Earth is . Because the average density of surface material is only around , we must
It'z Just What We Do though. Producer Joey Moi (Jake Owen, Nickelback) is a fine match for the duo’s country-meets-alt-rock sound." The album peaked at number 18 on the Top Country Albums chart. Additionally, it peaked on number 105 on the US "Billboard" 200, on number 45 on the Independent Albums chart, and reached number one on the Top Heatseekers chart. The EP starts off with "Cruise" and also includes "Get Your Shine On", "Tip It Back", "Tell Me How You Like It", and the title track "It'z Just What We Do". It'z Just What We Do It'z Just What We Do is the second