Process by which new rock is made from old rock; rock cycle
The rock cycle is a recycling process by which igneous, metamorphic, and sedimentary rocks are produced, converted from one form to another and destroyed. The rock cycle is a continuous process that has been occurring throughout the history of the earth. The major processes of the rock cycle include sedimentation, crystallization, metamorphism and erosion.
These cycles are described as the collective changes that take place due to the effects of the earth's movements on its climate which prevails over the thousand of years.
The earth's rotation on the axis and the revolution around the sun involve the gravitational attraction thus creates variation and complex cycles. So the distance between the earth's and the sun and the moon create s variation as seen by the seasons.
It is associated with the timing of the northern lights and the shift in the temperatures of the surface waters of the midlatitudes of the pacific ocean.
