How Does the Acidity In Water Affect Rock Erosion and How It Impacts Our Topography?

California relies on groundwater and surface water to supply its population. Most ground water that is used is collected with a pH range of 6-8.5, but the pH level is being lowered because we're burning CO2. Burning CO2 has significantly increased the amount of acid in the environment. This could be absorbed into clouds causing acid rain, which is just one way excess acid enters the environment. This rain then gets in to our water sources and decreases the pH level. The acid in the water reacts with some of the minerals in the rock around it speeding up its eroding progress. This can be dangerous. For example, the acidic ground water could dissolve rocks faster than it did before, so sinkholes could be made quickly anywhere. This will make the topography of the land change rapidly. I have chosen this project because it am very interested in the rock cycle and the change of earth's land as erosion continuously happens. In this project, acidic water with different pH levels will be exposed to rocks samples. The samples will be measured by weight to determine the rate of erosion. I expect the sedimentary rocks to erode the fastest, and metamorphic rocks to erode the slowest. I believe this because sedimentary rocks are made of previously broken sediments that are pushed together and easy to take apart again. However metamorphic rocks has had a lot of time to harden and change. The information from this experiment can help learn about the changing in earth's topography and one effect burning CO2 has on the environment.