| A | B |
|---|
| What's the most poorly managed resource we have? | water |
| How much of earth's water is salt water? | 97% |
| How much of earth's water is drinkable? | 3% |
| How much drinkable water is unobtainable? | 2.997% |
| How much is in lakes/streams/soil/vapor? | .003% |
| The water cycle.. | collects, distributes, and purifies water |
| Caddo Lake is... | the only natural lake, avg. dpth 6 ft. |
| Resevoir | man-made lake |
| Aquifer | underground water storage |
| Ogallala Aquifer | largest - stretches from Texas to Wyoming |
| U.S. water usage | 340,000,000,000 gallons/day |
| 260-300 gallons | per Southlake resident per day |
| How much of our water comes from surface water? | 75% |
| How much water is used for agriculture? | 47% |
| How much water is used for industry? | 44% |
| How much water is used for residential? | 9% |
| Coal | made out of carbon, 300,000,000,000 yrs to make |
| oil | made of decomposed plant matter |
| How long will coal last if we conserve? | 150 years |
| How long will coal be affordable? | 40 years |
| Pros of Coal | burns better than wood, cheap, flexible |
| Cons of Coal | burns dirty, limited amount, acid rain, mercury |
| Acid rain causes | 5 billion in damages per year |
| Oil Price - taxes | 27% |
| Oil Price - Crude Oil | 48% |
| Oil Price - Refining | 15% |
| Oil Price - Distribution | 10% |
| Oil Pros | cleaner than coal, burns hot, multiple uses, easy transport |
| Oil Cons | limited, lessens air quality, pollutes land and water |
| Nuclear Fission Pros | burns hotter, lots of potential |
| Nuclear Fission Cons | Mutants that kill and eat people |
| What is the fastest growing energy in the U.S.? | Solar Energy |
| Solar panels are made out of | silicon wafers. |
| Solar energy is 10 times more expensive than | nuclear energy. |
| 2 types of solar energy | Passive and Active |
| downsides to solar energy | cost, nighttime |
| Wind - Pros | free, won't run out, safe, clean |
| Wind - Cons | doesn't always blow, no way to store it, aesthetics |
| Wind is made by the | uneven heating of the Earth's surface (hot air rises, cold air fills in) |
| MOTO - Pros | clean, safe, cheap |
| MOTO - Cons | only used near coast, not large scale |
| Geo Thermal Energy is | getting energy from the earth's crust |
| Geo - Thermal Cons | Not popular, not cost efficient |
