Why does water obtained from natural resources does not show neutral pH?

Water obtained from Natural Resources often does not have a neutral pH of 7 due to the presence of dissolved minerals, gases, and organic matter. For instance, rainwater can absorb carbon dioxide from the atmosphere, forming weak carbonic acid and lowering its pH. Additionally, minerals like calcium and magnesium from rocks can contribute to the alkalinity or acidity of the water. These variations result in a range of pH levels in natural water sources.