Answer:
Microbes, salts, and pollution from agriculture and industry all contribute to the problem. Global warming will likely have major impacts on the world's freshwater resources.
Step-by-step explanation:
Water source protection involves the protection of surface water sources and the protection of groundwater sources from contamination of any kind. Water source protection includes basic measures and rules such as the installation of a fence around the source or the banning of grazing animals in the surrounding area.