Eutrophication Study guides, Class notes & Summaries

APES Exam Review Questions with correct Answers What is an ecosystem? a location on earth that includes interacting living (biotic) and non-living (abiotic) components. What percentage of energy is lost as trophic level increases? only 10% of energy is transferred from one trophic level to another. What is the Tragedy of the Commons? The destruction of a natural habitat known as a common that was overgrazed by sheep The addition of a limiting nutrient to an ecosystem ma...

What is an LCA and what does it do? A life cycle assessment is an analytical tool to assess upstream and downstream activities in the development of a product or service. It is used to assess the environmental impacts of processes by tracing energy, raw materials and waste streams, including acquisition and disposal. What are the 4 steps of the ISO 14000 LCA Standards? Describe them in turn. Goal Scope and Definition 14040 - define goal and intended use of LCA, scopes of assessment, bo...

APES Unit 4 FRQ's questions well answered rated A+ 2024Identify one component of the sewage that is targeted for removal by primary treatment and one component of the sewage that is targeted for removal by secondary treatment. - correct answer One component targeted for primary treatment is sludge (dirt, rocks, stuff that sinks). And one thing that is targeted by secondary treatment is scum (stuff that floats or dissolved). For each of the pollutants that you identified in part A, describe ...

NRES Environmental Pollutions Certification Exam Review Questions and Answers 2023/2024 Point source pollution - correct answer discharge from factories, sewage treatment plants, mines, power plants Easy to identify, monitor, regulate Non-point source - correct answer agricultural runoff, storm-water, atmospheric deposition Broadly scattered, difficult to regulate and control Organic wastes - correct answer oxygen demanding wastes Most biodegradable, but dissolved o2 is used up Raw se...

REHS Wastewater Treatment and Disposal Test Questions and Answers Latest Update 2024/2025 (100% Verified) A watertight tank designed to slow down the movement of raw sewage and wastes passing through to the soils is known as a Choose one answer. a. pit privy b. spring house c. septic tank d. grease trap c. septic tank Sludge and scum accumulation, and the appearance of particles of solids in the effluent from a septic tank is an indication of what? Choose one answer. a. a failure in t...

REHS: Wastewater Treatment and Disposal Test Questions and Answers Latest Update 2024/2025 | 100% Verified. Final disposal of sludge may include all of the following except Choose one answer. a. composting b. sanitary landfill c. land application d. vegetable garden dumping d. vegetable garden dumping A watertight tank designed to slow down the movement of raw sewage and wastes passing through to the soils is known as a Choose one answer. a. pit privy b. spring house c. septic tank ...

the public health triad - Answer People->other species->environment-> public health triad is similar - Answer epidemiologic triad agent->environment->host-> One health - Answer collaborative trans-disciplinary approach to achieving optimal health for people and other organisms in the environment - the health of the people is connected to the health of animals, plants, and the shares environment ecosystem services - Answer a framework for understanding human intera...

Although 2/3's of earth's surface is water, what percentage is fresh water? - ANSWER 3% What percentage of Maryland residents household water comes from a surface water source? - ANSWER 68% Clean water provides: - ANSWER *Critical wildlife habitat *an important part of Maryland's economy *enhances recreational opportunities The average Marylander uses how many gallons of water per day? - ANSWER 100 gallons Maryland's healthy water resources can benefit the economy by providing ...

volumetric flask - ANSWER used to accurately prepare solutions of various concentrations often used in titrations erlenmeyer flask - ANSWER can be used for mixing, transporting, and reacting, but are not appropriate for accurate measurements repippette - ANSWER hand operated pump that dispenses solutions beakers - ANSWER can be used to measure mass or dissolve a solvent into a soulte graduated cylinder - ANSWER used for precise measurements and are more accurate than erlenmeyer fl...

LCA Final exam Questions and Answers Fully solved 2023 what is an LCSA? Life Cycle Sustainability Assessment what reports compose a LCSA? LCA, SLCA, & LCC ISO 14040/44 (methodological framework) The only standardized method to assess potential environmental impacts of products along their entire life cycle - a compilation and evaluation of the inputs, outputs and potential environmental impacts of products What can an LCA do? • Determining the potential environmenta...