2.How do streams and rivers erode and deposit sediment and rock materials?3.How do stream gradients determine stream features?4.How do river features change over time?5.How and why do river floods occur?6.What factors affect the movement of water in the ground?7.What measures can be taken to conserve and protect groundwater supplies?8.Distinguish between point and nonpoint source pollution.9.How do human activities alter the flow and quality of the water from land to ocean?
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Ecology Enduring Understandings:-Dynamics of ecological populations are driven by and limited by both biotic and abiotic factors.-Biodiversity is used to describe and suggest the stability and vitality of an ecosystem.-Energy and matter are passed through various trophic levels.I.KEY VOCABULARY:EcologyEcosystemBiotic factorsAbiotic factorsCycleWater cycleCarbon cycleNitrogen cycleProducerConsumersDecomposersFood chainFood webEnergy pyramidSpeciesPopulationHabitatNicheBiodiversitySustainableCommunityPredator/PredationPreyCompetitionCooperationSymbiosisMutualismCommensalismParasitismLimiting factorCarrying capacityPollutionNatural resourcePopulation densityEndangered speciesInvasive SpeciesJ-curve/Exponential GrowthS-curve/Logistic GrowthBoom and BustII. KEY CONCEPTS:1.What is an ecological community, and what are the biotic and abiotic factors that affect the community and its populations?2.What are the levels of organization in the biosphere? 3.Describe the nitrogen, carbon, and water cycles.4.Describe the components of a food web and trophic pyramids.5.What kinds of interactions occur between organisms in a community (e.g. competition, cooperation, predation and symbiosis)? 6.What happens to a population when carrying capacity is exceeded? How does thisaffect competition and predation?7.Be able to analyze and interpret population graphs.8.How do humans impact ecological systems?
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