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Managing Earth's Resources

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Natural Resource - Nonrenewable

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Managing Earth's Resources

  1. 1. Preserving Earth’s Cycles Managing Natural Resources
  2. 2. In your lab notebook, please answer as best you can: 1. Anything naturally occurring on our planet that is useful to humans is a: • Natural Resource 1. Name at least 5 renewable resources the earth provides. • Air (oxygen), Water (drinking, agriculture, hydropower) • Living things (plants, animals, biomass energy), Land (for growing things) • Sun (warmth, plant growth, solar energy), Wind (power), Geothermal energy 3. True or False: A nonrenewable resource is a substance or product that is used up faster than it is able to be replenished through natural processes. • True • Pollution that comes from a specific, identifiable location is called: • Point Source Pollution • Plant and animal products which are used to heat homes, generate electricity, or create plant-based fuels for automobiles are called: • Biomass Bonus Question: Why is biodiversity important? For ecosystem stability, medical discoveries, economic development Week 10 Review Quiz
  3. 3. Nonrenewable Resources • Resources being used up faster than they can be replaced by natural processes are called nonrenewable. – Fossil Fuels • 66% of electricity in the U.S. was generated from burning coal & natural gas in 2015 – Minerals • Metals (copper, gold, bauxite) • Nonmetals (clay, diamonds, graphite) • Radioactive elements – Land • Human use (building/recreation/garbage)
  4. 4. Fossil Fuels • Coal – mined out of the ground • Natural gas – flammable methane gas – found near petroleum, underground • Oil – liquid found underground between folds of rock
  5. 5. Fossil Fuel Deposits • Natural Gas often found on top of oil • Oil rises up to float above water • “Pockets” of fossil fuels where tectonic plate folding and faulting occur
  6. 6. Fossil Fuels • Coal – burned for electricity, heat, and in factories • Natural gas – used to heat homes, generate electricity, & for manufacturing • Oil – Gasoline & Diesel fuel • for transportation (cars, trucks, airplanes, ships, trains) – Lubricants • petroleum jelly, grease, engine oil – Plastics – Asphalt • paved roads, parking lots, etc. – Kerosene, propane, butane • burned for light/heat
  7. 7. Products Made from Petroleum-based Chemicals Antihistamines Credit Cards Ink Surfboards Antiseptics Dentures Insecticides Surgical Equipment Antibiotics Deodorant Lipstick Syringes Artificial Limbs Diapers Medical Equipment Telephones Aspirin Dinnerware Nylon Rope Tennis Balls Balloons DVDs Pacemakers Tennis Rackets Bandages Dyes Pantyhose Tennis Shoes Cameras Eyeglass Frames Perfumes Tents Candles Fertilizers Photographic Film Toothbrushes Clothing Food Preservatives Piano Keys Toothpaste Computers Footballs Plastics Toys Cough Syrup Glue Shampoo Tranquilizers Cosmetics Golf Balls Shaving Cream Umbrellas Crayons Heart Valve Replacements Soft Contact Lenses Vitamin Capsules
  8. 8. AIR POLLUTION • An increase in the content of harmful substances (pollutants) in the lower atmosphere. – Where do pollutants come from? • Emissions – vehicles – manufacturing plants – Charcoal grills, lawnmowers • Photochemical smog • Ozone loss – CFCs (chlorofluorocarbons) • Smoke – forest fires, wood stoves, etc. • Natural disasters – volcanic eruptions, fires, earthquakes
  9. 9. • Humans/animals – respiratory & renal problems – high blood pressure – problems of nervous system – eye irritation – cancer • Plants – reduced growth – degeneration of chlorophyll • mottling of leaves (patches/ spots of color) • Acid rain • Greenhouse effect • Ozone layer destruction Consequences of Air Pollution
  10. 10. Land/Soil • Soil for growing food (crops/livestock) – loamy soil is best • holds water but allows for drainage • rich in nutrients & organic material • Land for building & development • Land for recreation (parks/pools/preservation)
  11. 11. Minerals – Precious metals • Gold, silver, platinum – Precious & semi-precious gems • Diamonds, rubies, emeralds – Building/manufacturing materials • marble, limestone • sand, gravel, silicon • iron ore, zinc, lead, copper • sulfur, talc – Radioactive substances • Uranium, radium, plutonium – Food additives • salt, calcium, magnesium, zinc
  12. 12. • Agricultural use of chemical fertilizers & pesticides – can kill organisms (decomposers) that help replenish healthy soil SOIL POLLUTION • Landfills, septic systems, nuclear & industrial waste – buried chemicals/toxins dissolve into soil/water
  13. 13. • Clear-cutting forested areas, construction zones – leads to erosion & leaching of soil nutrients – can eliminate of beneficial microbes • Impervious surfaces (cement/asphalt) – storm water runoff carries pollutants into soil/water – bioswales help filter naturally SOIL POLLUTION
  14. 14. What is Energy? • Energy is the ability to do work or cause change – measured in units of Joules (J) • Examples: – sun melts ice cream – car engine burns gas – electricity powers a blender – batteries run a flashlight – food enables us to run – a carpenter swings a hammer – trains pull boxcars – a tornado rips off a roof – wood stoves warm houses
  15. 15. Forms of Energy – Thermal Energy (heat) • faster moving atoms collide more often and cause higher temperatures • i.e. water boils on the stove – Chemical Energy (stored in atomic bonds) • heat/light/sound is released during chemical reactions • i.e. your body gains energy after eating – Electrical Energy (movement of electrons) • the flow of electrons is converted into heat, light, sound or movement • i.e. hair dryer, radio, light bulb, MAX train
  16. 16. Forms of Energy – Radiant Energy (waves) • electromagnetic waves carry energy that our bodies interpret as heat, light or sound • i.e. sunlight, radio transmissions, microwave ovens, x-ray machines – Nuclear Energy (stored in atomic nuclei) • nuclear fission & fusion occurs when protons & neutrons are split apart or forced together, releasing huge amounts of energy • i.e. nuclear reactors, the sun & stars, radioactive elements, geothermal heat
  17. 17. Law of Conservation of Energy • Energy cannot be created or destroyed (1st Law of Thermodynamics) – it can only be converted from one form to another – the total energy in a system must remain constant
  18. 18. Energy Resources Renewable • Won't run out - can be replaced/replenished – Solar & Geothermal – Wind & Hydroelectric – Biomass – WaveNon-Renewable • Limited supply - once it's used up, it's gone for good – Fossil Fuels • Petroleum • Natural Gas • Coal – Nuclear
  19. 19. Renewable Energy • Biomass • Solar • Geothermal • Wind • Hydroelectric • Wave
  20. 20. Nonrenewable Energy Coal Plant Petroleum Wells Natural Gas Pipeline Nuclear Reactors Fossil Fuels are formed by decomposition, heat & pressure acting on buried dead organisms over long periods of time • Petroleum (crude oil) • Natural Gas, propane, kerosene • Coal, asphalt, tar • Paraffin wax, methane gas • Motor oil, grease, petroleum jelly
  21. 21. Energy Consumption
  22. 22. Per Capita Oil Consumption

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