Question

what is a rock cycle ?what is its inportance role in nature ? give out names of different types of rocks in the cycle ? also explain how they change from one to an another in 100 words ? remember this question carries 21 marks

Answer 1

The rock cycle is a basic concept in geologythat describes the time-consuming transitions through geologic time among the three mainrock types: sedimentary, metamorphic, andigneous. As the diagram to the right illustrates, each of the types of rocks is altered or destroyed when it is forced out of its equilibrium conditions. An igneous rock such as basalt may break down and dissolve when exposed to the atmosphere, or melt as it is subducted under a continent. Due to the driving forces of the rock cycle, plate tectonics and the water cycle, rocks do not remain in equilibrium and are forced to change as they encounter new environments. The rock cycle is an illustration that explains how the three rock types are related to each other, and how processes change from one type to another over time.

Answer 2

Answer:

There are three main types of rocks: sedimentary, igneous, and metamorphic. Each of these rocks are formed by physical changes—such as melting, cooling, eroding, compacting, or deforming—that are part of the rock cycle. Sedimentary rocks are formed from pieces of other existing rock or organic material