CK12 Earth Science

What is the origin of California’s fresh water sources? Vocabulary consumptive Water use where water is ’lost’ to evaporation. ...

rivers, streams, swamps, reservoirs, and even underground water rich regions of soil and rock, calledaquifers. Almost anywhere y ...

Projected Water Distribution in 2025: The blue areas are the most water rich regions of the world. The salmon pink areas are des ...

Global warming affects patterns of rainfall and water distribution. As the Earth warms, regions that currently receive an adequa ...

Figure 21.11: Water Supply Compared to Population. ( 4 ) Figure 21.12: Water Scarcity Projections: If world-wide water use and p ...

materials to the freshwater supply. This use may lead to pollution of our water resources and cause harm not only to humans but ...

Figure 21.13: Extended periods with lower than normal rainfall cause droughts. ( 21 ) ...

Figure 21.14: Access to improved drinking water and progress towards achieving the inter- nationally agreed goals on water and s ...

Problems with Water Quality Scarcity of Safe Drinking Water The next time you get water from your faucet, imagine life in a coun ...

Figure 21.15: The states and Canadian Provinces surrounding the Great Lakes have created a pact to control water in the lakes, p ...

Water is so valuable that countries have fought each other over water rights throughout history. Water shortages and water poll ...

21.3 Water Pollution Learning Objectives Discuss the risks that water pollution poses to human and environmental health. Explai ...

Figure 21.16: Municipal and agricultural pollution. ( 15 ) Types of Water Pollution Municipal Pollution Wastewater usually conta ...

Figure 21.17: Industrial Waste Water: Polluted water coming from a factory in Mexico. The different colors of foam indicate vari ...

Figure 21.18: Many types of agriculture add pollutants to groundwater. ( 12 ) nearby rivers, lakes and the oceans. Fertilizers c ...

Figure21.19: AgriculturalWasteWater: ADeadZoneisalargeareaofwaterwherefertilizer runoff pollutes farms and yards, ultimately kil ...

Figure 21.20: In some areas of the world, ocean pollution is all too obvious. ( 5 ) ...

harmful symptoms. More than one-third of the shellfish-growing waters of the United States are adversely affected by coastal pol ...

Who is responsible for reducing water pollution? Explain what a dead zone is and where you might find one? What is the leading ...

Figure 21.22: Wastewater Treatment: Most wastewater treatment facilities separate con- taminants from water by passing wastewate ...