Question

what is the rock cycle?
a. the cooling of lava and magma to form rocks
b. the tracing of rocks through the four spheres of earth
c. the continuous processes by which rocks change form
d. the weathering, erosion, and deposition of rocks

Explanation:

The rock - cycle is the continuous set of processes by which rocks change form. Cooling of lava and magma is just one part of it (igneous rock formation). Tracing rocks through Earth's spheres is not the definition. Weathering, erosion, and deposition are also parts of the cycle but don't fully define it.

Answer:

C. the continuous processes by which rocks change form