Resources

Ch. 25

E/E Mr. Batts

Renewable Resources

Can be used indefinitely without being used up.

Examples: Trees (lumber), wind energy, fresh water, solar energy, crops, chickens

Sustainable yield

Not using resources more than they can be replaced.

Ex. Not overfishing, planting trees once they are logged

Nonrenewable Resources

Resource that exists in a fixed amount They can’t be replaced naturally for

millions of years (unless recycled)

Examples: diamonds, fossil fuels (oil, coal), silver, metals

*A countries’ wealth depends on the location and extraction of resources

coal

US imports 12 million barrels of oil per day

Top Oil Producers Top Oil Consumers

Saudi Arabia US Russia China US Japan Iran India

The US has 6% of the people in the world, but we use 30% of the Earth’s resources.

We waste too much.

Companies that don’t import middle eastern oil

Hess Citgo BP Conoco

Companies that import oil from the Middle East

Shell Texaco Exxon/Mobil Amoco

Minerals and uses

Clay-bricks, china, tiles, pottery Gypsum-plaster Talc-cosmetics Lead-batteries and shields for xrays Limestone-cement Silver-photography, jewelry, electronics Titanium-jet engines, whitener in foods Zinc-pennies, steel

Air Resources

Sources of Air pollution: Power plants Automobiles (90% of CO)

Causes asthma, lung cancers

Pollutants from coal burning plants in the midwest can travel in air to Adirondack mtns in NY. (carried downwind)

Indoor Air Pollution

Asbestos-from insulation, lung cancer Formaldehyde-from furniture; irritates

eyes and lungs, dizziness Radon222- from soil and water; lung

cancer Carbon Monoxide-from faulty furnaces,

wood stoves; headaches, irreg heartbeat

Water

~71% of E’s surface is ocean Oceans have 97% of all the water on E Of 3% left (freshwater), 2/3 of that is

frozen in glaciers

Most animals and plants are 50-70% water

Questions

1. Know renewable vs. nonrenewable.

2. What are the main sources for air pollution?

References

http://www.crem-ltd.com/images/clyde_hydro_800px.jpg

http://www.eia.doe.gov/country/index.cfm http://annassistant.com/wp-content/uploads/

2010/06/Hess-Gas-Station.jpg http://www.snopes.com/politics/gasoline/

saudigas.asp http://www.diamonds11.com/images/

ekati_diamond_mine.jpg http://www.rocksandminerals.com/uses.htm http://upload.wikimedia.org/wikipedia/

commons/8/87/Smokestack_in_Detroit.jpg

More references

http://i.dailymail.co.uk/i/pix/2009/07/24/article-1201997-05D4C6A9000005DC-454_634x633.jpg