Final answer:
In the model of the rock cycle, the correct answer for Blank A is 'Igneous, Sedimentary, Metamorphic,' and for Blank B, it is 'Sedimentation, Weathering, Melting,' each describing different processes and formations of rock types.
Step-by-step explanation:
The student is asked to identify the correct sequences in a model of the rock cycle. In Blank A, the correct answer is D: Igneous, Sedimentary, Metamorphic. This order represents the formation sequence where igneous rocks form from cooled magma or lava, sedimentary rocks from weathered rock particles that are cemented together, and metamorphic rocks from existing rocks that are altered by heat and pressure without melting.
For Blank B, the proper sequence of processes involved in the rock cycle is C: Sedimentation, Weathering, Melting. Sedimentation is involved in the formation of sedimentary rocks, weathering in the breakdown of rocks on Earth's surface, and melting results in the formation of magma, which can eventually cool to form igneous rocks.