Earth’s Natural Resources Chapter 4  Energy and Mineral Resources  Alternative Energy Resources  Wind, Air, and Land Resources  Protecting Resources.

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<ul><li><p>Earths Natural ResourcesChapter 4Energy and Mineral ResourcesAlternative Energy ResourcesWind, Air, and Land ResourcesProtecting Resources</p></li><li><p>Energy and Mineral ResourcesRenewable and Nonrenewable resources.Renewable resource: replenished over a fairly short period of time.Exs)</p><p>Nonrenewable resources: takes millions of years to form and accumulate.Exs)</p></li><li><p>Place a star on the renewables and an X on the nonrenewables</p></li><li><p>Renewable and Nonrenewable resourcesFossil Fuels: A hydrocarbon that may be used as a source of energy.CoalOil / PetroleumNatural Gas</p></li><li><p>CoalPasses through 4 stages of development.Read page 95 in the textList the 4 stages of the development of coal below. </p></li><li><p>CoalMore than 70% of the coal mined today is used by powerplants to generate electricity.Where is most of the coal located in Pa?What type of coal is located there?Burning coal creates acid rain</p></li><li><p>Petroleum and Natural GasHow does Petroleum and Natural Gas form? (p.96)What prevents oil and natural gas from migrating to the surface?Draw and label a type of structure that traps oil.</p></li><li><p>Tar SandsWhere is most of the tar sand deposits located?</p><p>What are some drawbacks from obtaining oil from tar sands?</p><p>Where is most of the worlds oil shales?</p></li><li><p>Formation of Mineral DepositsOre - Metallic mineral that can be mined for $$$.Some of the most important mineral deposits form through igneous processesAs the magma cools, heavy minerals settle to the bottomhydrothermal solutions -or- hot water solutionsAs the water cools metallic ion separate out of solutionplacer deposits Gold is popular placer deposit!</p></li><li><p>Nonmetallic mineral resourcesDivided into two groupsBuilding materialsIndustrial minerals</p><p>Name 4 nonmetallic minerals and their uses.</p></li><li><p>Alternative Energy ResourcesSolarNuclearWindHydroelectricGeothermalTidal</p></li><li><p>Using your textbook, outline each of the types of alternative energy resources on a separate sheet of paperYour outline should be in the following formatAlternative Energy Source (e.g. Solar Energy)Renewable, or nonrenewable?Simple description of how it works to capture energy in your own words.AdvantagesListDisadvantagesList</p></li><li><p>Water, Air, and Land ResourcesNearly 71% of Earths surface is water!About 2% fresh water1.6% of fresh water is ice at the polesLess than 1% of Earths fresh water is usable</p></li><li><p>Water PollutionThere are two types of water pollutionPoint source pollutionComes from a known and specific locationYou can point to itNonpoint source pollutionDoes not have a specific point of originDifficult to identify a specific sourceRunoffWater that flows over the land rather than seeping into the groundLargest source of water pollution in the United States!</p></li><li><p>Point source or nonpoint sources of water pollution?</p></li><li><p>The Atmosphere - Earths Blanket of AirChemical composition helps maintain life on earthNitrogen - 78%Oxygen - 21%Trace gases - 1%CO2Argon</p></li><li><p>Air PollutionPollution can change the chemical composition of the air disrupting natural cycles.Burning of fossil fuels is a major source of air pollutionMotor vehiclesCoal and oil fired powerplants</p></li><li><p>Burning fossil fuels releases</p><p>Carbon MonoxideNitrogen OxideSootWhen they combine with water vapor in the air they create acid rainWhen they combine with sunlight smog is produced</p></li><li><p>Burning fossil fuels and Carbon Dioxide (CO2)CO2 is a Greenhouse GasGreenhouse gas traps heat from the sunThe amount of CO2 in the atmosphere has increased since the industrial revolution began in the 19th centuryThe increase in CO2 has altered the Carbon cycle and contributed to unnatural warming of the lower atmosphere (global warming)</p></li><li><p>Land ResourcesLand provides soil and forests, as well as mineral and energy resources.How do land resources impact your daily life?Soil - to grow the food you eatForests - to build your home, furniture, paperPetroleum - Energy, plasticsMinerals - makeup, coins in your pocketRemoving and using these resources can take a heavy toll on the environment!</p></li><li><p>Strip mines - drastically changes the landscapeDestroys vegetationCauses soil erosionCreates pollution contaminating soil and waterDestroys ecosystems</p></li><li><p>More damage to land resourcesAgricultureextensive irrigation systemsFertilizersPesticidesGenetically modified foodForestry - Removal of virgin forestsEliminates diversity of plant and animal speciesLandfills and waste facilitiesPotential to leak toxics into soil and ground water</p></li><li><p>Look it upHow many plastic water bottles do we throw away each year?Year?</p><p>Day?</p><p>Hour?</p><p>Minute?</p><p>Second?</p></li><li><p>Protecting ResourcesEach year we throw out about30 million cell phones8 million TVs18 million computersEnough tires to circle the 3 timesEnough shrink wrap to wrap the state of Texas!We have 6% of the worlds population yet we produce 33% of the worlds garbage!</p></li><li><p>How can keep ourselves in check?Many think conservation and pollution prevention are the answers.Conservation is the careful use of resources.</p><p>Pollution prevention means stopping pollution from entering the environment.</p></li><li><p>At your table, come up with 10 conservation methods you can use in your daily lives. </p></li><li><p>Keeping water clean and safe1970sGovernment began passing laws to prevent and decrease pollution.Clean Water Act (1972): The CWA went after industries to reduce or eliminate point sources of pollution into surface waters.</p><p>Safe Drinking Water Act (1974): helped protect drinking water resources.</p></li><li><p>Protecting the AirIn 1970 congress passed the Clean Air Act.Nations most important air pollution lawBecause of the CAA: motor vehicles and power plants use control devices to reduce or eliminate harmful byproducts of fossil fuel combustionEnergy Conservation = Cleaner AirHow does turning off the lights when youre not using them decrease air pollution?</p></li><li><p>Caring for Land ResourcesPreventing pollution and managing land resources wisely!FarmersContour plowing: plowing across a hillside reduces runoffUse of organic fertilizers and IPM (pesitcides as a last resort)ForestrySelective cutting rather than clear cutting: preserves habitats and conserves resources</p></li><li><p>What you can do to care for the landStart a compost pile!Practice using IPM (integrated pest management)Conserve water, and electricityThe three RsReduceReuseRecycle</p></li></ul>

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