Water Harvesting and Filtration: Due to the world population growth and different water applications, we are seeing a rapid increase for water usage while there is an acute water shortage in worldwide on surface water as well as groundwater. Some areas the land sinks water that resulted lowering water table and other areas are kind of mountainous slab which resulted water being speedy runoff and may cause flood in rain season and recurrent drought in dry season, because of their low infiltration. However, such areas might be found rivers, shallow wells and springs but this is not what always countries can be sharing due to the unlike geographical formations. Regarding seasonal occurrence water and environmental policies/plans/projects should be continue in national and international levels. Hence, Sand Dams, Gravity Dams, Roof catchments and other water conservation Mechanisms can be part of solutions. Figuring out, water related problems are not only prov...
