Question

this image shows a model of the rock cycle. at point r, rocks melt underground to form magma. which is another process that contributes to the formation of rock at point r? compacting of sediments on the mountain cooling as the lava runs down the mountain weathering of the mountain from the environment eroding of different rocks at the base of the mountain

Explanation:

At point R, rocks are melting to form magma. Cooling of lava (which is magma that reaches the surface) can form igneous rocks. Compacting of sediments forms sedimentary rocks which is not relevant here. Weathering and erosion are processes that break down rocks rather than form them at the point where rocks are melting to form magma.

Answer:

cooling as the lava runs down the mountain