how humans negatively affect water
how human negatively affect water and how to prevent it
agricultural development can be bad because tillage of land changes the infiltration and runoff characteristics of the land surface, which affects recharge to ground water, delivery of water and sediment to surface-water bodies, and evapotranspiration.
but tillage practices have been modified to maximize retention of water in soils and to minimize erosion of soil from the land into surface water bodies.
urban and industrial development
Examples of urban and industrial development side affects include direct discharges from sewage-treatment plants, industrial facilities, and stormwater drains.
biogeochemical processes ma decrease the concentration of the contaminant as it is transformed through the shallow ground water system.