Carbonates are chemical compounds that contain the carbonate ion, CO3^2-. They are commonly found in nature and play a significant role in geological processes. Carbonates can form minerals, such as calcite and dolomite, which are essential components of rocks like limestone. These compounds are also important in various industries, including construction and agriculture. In the environment, carbonates help regulate carbon dioxide levels in the atmosphere and oceans, contributing to the Earth's carbon cycle. Their ability to react with acids makes them useful in neutralizing soil acidity and improving plant growth.