Water

This week

• Monday – Water check-in assessment• Water diversions online assignment (hw-due

Tuesday)• Tuesday – “Microbes in Sewage program”

presented from scientists from Clean Bay Education

• Block Day – Go over Unit 6 (waste/toxicity) test, past labs, …pollution in the water

• Friday

•Water–Supply, Renewal and Use– Groundwater – Too little Water– Dams and Reservoirs– Transferring water

•Water– Supply, Renewal and Use

–Groundwater – Too little Water– Dams and Reservoirs– Transferring water

•Water– Supply, Renewal and Use– Groundwater

–Too little Water– Dams and Reservoirs– Transferring water

Precipitation Varies Greatly

• In most areas of Nevada and California, potential transpiration and evaporation is in excess of precipitation, which causes a net moisture deficit

Too Little Water

• Causes– Dry climate– Drought - a period in which precipitation is much

lower and evaporation is much higher– Desiccation - drying of soil because of such

activities as deforestation and overgrazing– Water stress - low per capita availability of water

caused by overpopulation

Drought may spark food price hike

Tuesday, November 12, 2002

SYDNEY, Australia -- All but one percent of Australia's most populous state, New South Wales, has been bit by the country's worst drought in a century, with retailers warning that if rain does not fall soon, the country will likely face massive food price hikes.

•Water– Supply, Renewal and Use

– Groundwater – Too little Water

–Dams and Reservoirs–Transferring water

•Water–Dams and Reservoirs and –Transferring water

Fish Bypass System

Chinese Dam