I believe the correct answer is homeostasis.
The answer is #4. The first and second one involve acid, which is chemical weathering. The third one involves oxidation, which is a chemical process. The only mechanical process is option four.
They form an organ
Have a nice day
The right answer for the question that is being asked and shown above is that: "-an extrusive igneous rock." Darby finds a rock in her backyard. It has large crystals. She has found <span>-an extrusive igneous rock</span>
Answer:
am not sure of the answer