In this model of rock cycle, a represent rock and v represents the process of first blank [a. igneous, b. metamorphic, c. sedimentary] second blank [a. melting, b. sedimentation, c. weathering]

A) Sedimentary

B) Weathering

Explanation:

A sedimentary soil/rock is formed when carrying agents such as wind or water carries rock pieces or soils particles from faraway places and deposit them at one place through a process known as lithification. However, increased pressure and temperature causes weathering of rocks. Changing temperature causes a rock to expand or cool alternatively thereby giving rise of internal stresses. While exfoliation is caused on increasing pressure.

there's no big difference.

explanation:

the only little different between a rabbit and bunny is just that bunnies are much smaller than rabbits. bunnies are basically baby rabbits.