In the rock cycle, an existing rock can become any of the three rock types depending on the

Correct answer to question 176 (General Science): processes it is exposed to, such as heat, pressure, or weathering

Method

The rock cycle shows that rock is not fixed: melting and cooling produces igneous rock, heat and pressure produce metamorphic rock, and weathering and compaction produce sedimentary rock, and any type can feed into any other.