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Content tagged with: Earth

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Case Study: Gold: Worth its Weight? (m41467)
Keywords: Heap leaching, Hushing, Hydraulic mining, Mercury amalgamation, Panning, Sluice box
Summary: In this module, the the large environmental impact of gold mining is discussed.
Subject: Science and Technology
Language: English
Popularity: 60.36%
Revised: 2012-04-27
Revisions: 5
Case Study: The Aral Sea - Going, Going, Gone (m41400)
Subject: Science and Technology
Language: English
Popularity: 67.86%
Revised: 2012-01-18
Revisions: 4
Biodiversity, Species Loss, and Ecosystem Function (m41619)
Keywords: biodiversity, ecological services, ecosystem function, extinction, extirpation
Summary: In this module, the following topics are covered: 1) biodiversity, 2) trends in biodiversity loss with reference to species and ecosystems, 3) ways human activity affects biodiversity, and 4) biodiversity loss effects on people
Subject: Science and Technology
Language: English
Popularity: 74.38%
Revised: 2012-03-08
Revisions: 6
Mineral Resources: Formation, Mining, Environmental Impact (m41470)
Keywords: Acid mine drainage, Bioleaching of minerals, Biological processes, Biooxidation of minerals, Biosorption of minerals, Black smoker, Enrichment factor, Genetic engineering of microbes, Hydrothermal, Igneous crystallization, Igneous rock, Leaching, Metamorphic rock, Metamorphism, Mineral, Mineral conservation, Mineral recycling, Mineral reserves, Mineral resources, Mineral reuse, Mineral substitution, Open-pit mine, Ore, Ore deposit, Placer deposit, Placer mine, Reclaimed mine, Rock, Sedimentary Processes, Sedimentary rock, Slag, Smelting, Strategic mineral, Strip mine, Surface mine, Tailings, Underground mine, Weathering
Summary: In this module, the following topics will be covered: 1) the importance of minerals to society; 2) the factors that control availability of mineral resources, 3) the future world mineral supply and demand; 4) the environmental impact of mining and processing of minerals; 5) solutions to the crisis involving mineral supply
Subject: Science and Technology
Language: English
Popularity: 94.94%
Revised: 2012-04-26
Revisions: 5
Water Pollution (m41441)
Keywords: Arsenic, Biochemical oxygen demand, Bioremediation, Bottled water, Combined sewer systems, Constructed wetland, Contaminant plume, Cultural eutrophication, Excessive plant nutrient, Hard water, Heat, Heavy metal, Hypoxia, Mercury, Nonpoint source (of water pollution), Oil spill, Oxygen-demanding waste, Pathogens, Persistent organic pollutant, Point source (of water pollution), Sediment, Septic tank system, Sewage treatment plant, Sludge, Solvent, Total dissolved solids, Toxic chemical, Underground fuel storage tank, Water pollution
Summary: In this module, the following topics will be covered: 1) water pollutants and how they degrade water quality, 2) the lack of safe drinking water in some parts of the world , 3) sewage treatment 4) the difficult process to remediate groundwater pollution, and 5) solutions for the crisis involving water pollution
Subject: Science and Technology
Language: English
Popularity: 97.94%
Revised: 2012-03-23
Revisions: 7
Case Study: The Love Canal Disaster (m41444)
Keywords: Superfund
Summary: In this module, The Love Canal Disaster is described.
Subject: Science and Technology
Language: English
Popularity: 76.78%
Revised: 2012-03-23
Revisions: 5
Biogeochemical Cycles and the Flow of Energy in the Earth System (m41618)
Keywords: ammonification, anthropogenic CO2 emissions, assimilation, biogeochemical cycles, biological components of the earth system, biological nitrogen fixation, decomposers, denitrifying bacteria, eutrophication, evaporation, evapotranspiration, fluxes, greenhouse gases, groundwater discharge, infiltration, land use change, leaching, nitrification, photosynthesis, physical components of the earth system, pools, precipitation, primary producers, respiration, streamflow, surface runoff
Summary: In this module, the following topics will be covered: 1) biogeochemical cycle, 2) the natural cycles of carbon, water, and nitrogen, and 3) important ways human activity disrupts those cycles.
Subject: Science and Technology
Language: English
Popularity: 90.27%
Revised: 2012-09-19
Revisions: 6
Water Cycle and Fresh Water Supply (m41397)
Keywords: Aqueduct, Aquifer, Aquitard, Artesian well, Condensation, Cone of depression, Confined aquifer, Consumptive water use, Dam, Desalination, Discharge area, Drainage basin, Evaporation, Groundwater, Groundwater mining, Instream water use, Offstream water use, Permeability, Pore space, Porosity, Rainwater harvesting, Recharge area, Reservoir, River discharge, Saltwater intrusion, Saturated zone, Soil moisture, Spring, Surface runoff, Transpiration, Unconfined aquifer, Unsaturated zone, Water conservation, Water crisis, Water cycle, Water reservoir, Water table, Water table well
Summary: In this module, water reservoirs and water cycles are described, the principles controlling groundwater resources are presented, the causes and effects of depletion in different water reservoir are given, and solutions to the water supply crisis are discussed.
Subject: Science and Technology
Language: English
Popularity: 94.57%
Revised: 2012-03-21
Revisions: 5
Sustainability: A Comprehensive Foundation (col11325)
Institution: University of Illinois
Summary: With “Sustainability: A Comprehensive Foundation”, first and second-year college students are introduced to this expanding new field, comprehensively exploring the essential concepts from every branch of knowldege – including engineering and the applied arts, natural and social sciences, and the humanities. As sustainability is a multi-disciplinary area of study ... the field.
Subject: Science and Technology, Social Sciences
Language: English
Popularity: 99.60%
Revised: 2012-10-08
Revisions: 40
Climate Processes; External and Internal Controls (m38482)
Keywords: albedo, climate, cretaceous period, greenhouse effect, greenhouse gases, infrared spectrum, insolation, positive feedback, snowball earth, solar radiation, visible spectrum, weather
Summary: In this module, you will explore the processes that control the climate.
Subject: Science and Technology
Language: English
Popularity: 87.79%
Revised: 2012-09-18
Revisions: 17
Soil and Sustainability (m41620)
Summary: In this module, the following topics are covered: 1) soil's importance to society, 2) the formation of soil profiles, 3) soil constituents for plant growth and nutrient uptake, and 4) soil's relationship with agricultural sustainability and ecological processes
Subject: Science and Technology
Language: English
Popularity: 81.10%
Revised: 2012-09-17
Revisions: 7
Physical Resources: Water, Pollution, and Minerals - Chapter Introduction (m41523)
Summary: In this module, the Chapter "Physical Resources: Water, Pollution, and Minerals" is introduced.
Subject: Science and Technology
Language: English
Popularity: 62.34%
Revised: 2012-01-18
Revisions: 3
Biosphere – Chapter Introduction (m41617)
Keywords: cultural ecosystem services, ecosystem, ecosystem services, provisioning ecosystem services, regulating ecosystem services, supporting ecosystem services
Summary: In this module, the Chapter Biosphere is introduced.
Subject: Science and Technology
Language: English
Popularity: 65.02%
Revised: 2012-03-08
Revisions: 5
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