Water's physical and chemical properties make it an agent of both mechanical and chemical weathering. Which of the following are examples of chemical weathering processes? Select all that apply.
A. Water enters cracks in rocks, freezes, and expands.
B. Acidic water dissolves certain rocks and minerals.
OC. Moving water breaks down small rocks as it carries them downstream.
OD. Rocks absorb water, which reacts with their molecules.