The rock cycle is driven by two forces: (1) Earth's internal heat engine, which moves material around in the core and the mantle and leads to slow but significant changes within the crust, and (2) the hydrological cycle, which is the movement of water, ice, and air at the surface, and is powered by the sun.
This layer of the earth lies between the mantle and the solid inner core. It is the only liquid layer, a sea of mostly iron and nickel about 1,400 miles (2,300 km) thick.
The grand canyon is a steep side canyon that is formed the Colorado rover in the state of Arizona and is a 277 mile long and is 29 km wide. The Colorado River established its course about 5 to 6 million years ago and since then has been cutting the tributaries and deepening the canyon.
The upliftment lined to the mountain formation later moved the sediments thousand feet upwards and created the Colorado plateau. Causing the temperatures in the northern rimland to decrease than in the southern rim due to its greater height above elevation.
As weather varies according to the elevations the forested rims have high snowfall but the temperature at the Colorado rover is warmer, about 1,737 species of vascular planet and fungi, lichens and others are found at 24,00 meters height.
