2nd set of words
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| What's R Strategist? | Reprodce early, many small unprotected offspring.
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| What's K Strategist? | Reproduce late, few, cared for offspring.
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| What's Natural Selection? | Organisms that possess favorable adaptations pass them onto the next generation.
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| What's Malthus? | Said humanpopulation cannot continue to increase...consequences will be war, famine & dsease
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| What's Dubling Time? | Rule of 70 70 divided by te percent growth rate.
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| What's Replacing Level Fertility? | The number of children a couple must have to replace themselves(2.1 developed, 2.7 developing)
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| What's World Population? | Over 6 billion.
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| What's Preindustrial Stage? | Birth & death rates high, population grows slowly, infant mortality high.
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| What's Transition Stage? | Death rate lower, better health care, population grows fast.
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| What's Indstrial Stage? | Decline in birth rate, population growth slows.
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| What's Postindustrial Stage? | low birth & death rates.
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| What's Age Structure Diagrams? | (broad base, rapid growth)(narrow base, negative growth)(uniform shape, zero growth)
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| What's 1st & 2nd Most Populated Countries? | China & India
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| What's the ost Important Thing Affecting Population Growth? | Low status of women.
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| What's Ways to Decrease Birth Rate? | Family planning, contraception, economic rewards & penalties.
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| What's Percent water on Earth by Type? | 97.5% seawater, 2.5% freshwater
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| What's Salinazationof Soil? | In arid regions, water evaporates leaving salts behind.
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| What's Ways to Conserve Water? | (Agriculture, drip/trickle irigaion)(industry, recycling)(home, use gray water, repair leaks, low flow fixtures)
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| What's Point vs Non-Point Source? | Point: from specific location such as pipeNon-pint: from over an area such as runoff.
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| What's BOD? | Biological oxygen demand, amount of disolved oxygen needed by aerobic decomposers to break down organic materials.
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| What's Eutrophication? | Rapid algal growth aused by an excess of N&P
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| What's Hypoxia? | When aquatic plants die, the BOD rises as aerobic decomposers break down the plants, the DO dros & the water onnot support life.
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| What's Minamata Disease? | Mental impairments caused by mercury.
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| What's Primary Air Pollutants? | Poduced by humans & nature ( CO, CO2, So2, NO, hydrcarbons, particulaes)
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| What's Secondary Pollutants | Formed by reaction of primary pollutants.
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| What's Particulate Matter(Source, Effect, Reduction)? | (Buring fossil fuels & car exhaust)(Reduces visibility & resiratory irritation)(filtering, electrostatic precipitators alternative energy)
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| What's Nitrogen Oxides? | (Source: auto exaust) (Effects: acidification of laks, respirator irritation, leas to smog & zone)(Equaton for acid formation: NO+O2=NO2=H2)=HNO3)(Reduction: catalytic converter)
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| What's Sulfur Oxides? | (Soure: coal burning)(Effects: acid deposition,espiratory irriation, demages plants)(Equation for acid formation: SO+O2=SO3+H2O=H2SO4)(Reduction: scrubbers,burn low sulfur fuel)
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| What's Carbon Oxides? | (Source: auto exhaust incomplete combustion)(Effects: CO binds to hemoglobin reducing bloods abiity to carry O, CO2 contributes to global warming)(REducion: Cataltic converter, emission testing, oxygenated fuel, mass transit)
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| What's Ozone? | (Formation: secondary pollutant, NO=UV=NO+OO+O2=O3, with VOC's)(Effects: respiatory irritans, plants damage)(Reduction: Reduce NO Emissions & VOC's)
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| What's Indusrial Smog? | Found in cities that burn large amounts of coal.
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| What's Acid Deposition? | Caued by sulfuric and nitric acids resulting in lowered pH of surface waters.
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| What's Greenhouse gases? | (Ex. H2o, CO2, O3, methane(CH4), CFC's)(EFFECT: they trap outgoing infrared (heat) energy causing earth to warm up)
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| What's Ozone Depletion Caused By? | CFC's, methyl chloroform, carbon tetrachloride, halon, methyl bromide all of which attack stratospheric ozone.
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| What's Effect of Ozone Depletion? | Inceased UV, skin cancer, cataracts, decreased plant growth.
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| What's Love Canal, NY? | Chemicals buried in old canal and school & homes built over it causing bith defects & cancer.
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| What's Most Municipal SOLID Waste? | Paper
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| What's Most municipal waste? | Landfilled
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| What's Sanitary Landfill Problems and Solutions? | (leachate, liner with collection system)(methane gas, collect gas and burn)(volume of garbage, compact & reduce)
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| What's Incineration Advantages? | Volume of waste reduced by 90% & waste heat can be used.
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| What's Incineration Disadvantages? | toxic emisssions polyvinyl cloride--dioxin), scrubbers & electrostatic precipitators needed, ash disposal
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| What's Best Way to Solve Waste Problems? | Reduce the amounts of waste at the source
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| What's Keystone Species? | Species whose role in an ecosystem are more important than others
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| What's Indicator Species? | Species that serve as early warnings that an ecosystem is being damaged.
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| What's Most Endangered Species? | Have a small range, require large territory or live on an island.
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| Who Keeps in Controls 50-90% of Pest Species in the Natural World? | Predators, diseases, parasites
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| What's Major Insecticide Groups and Examples? | (Chlorinted hydrocarbons, DDT)(Organophosphates, malathion)(Carbamates aldicarb)
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| What's Pesticide Pros? | Saves lives from insect trasmitted diseases, increases food supply, increases profits for farmers.
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