What is eutrophication - Study guides, Class notes & Summaries

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...

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...

Seeding of BOD samples is necessary when samples - (All of the above) have a chlorine residual, have a previously been chlorinated, have been subjected to high temperatures, contain high or low pH industrial wastes When is blue-green algae the most dominant on a pond treatment system? - Summer A 30-inch diameter wastewater interceptor is observed to be flowing half-full at about two fps. The approximate volume of wastewater flowing through the pipe is 3.14x1.25 x 1.25 x 2 = 4.9 cfs x 449 =...

Which of the following is responsible for the increased growth of algae in the dead zones? - ANSWER ☑☑Elevated phosphorous and nitrogen in the water What is the source of the elevated nutrients in the water that cause the formation of dead zones in the Gulf of Mexico? - ANSWER ☑☑Agricultural runoff from much of the central United States Which of the following is directly responsible for depleting the supply of oxygen in bottom waters? - ANSWER ☑☑Bacterial growth Nitrogen ...

PRAXIS CRAM - BIOLOGY 5236 Exam Questions With 100% Correct Answers Pros of stem cell research - answerCuring genetic diseases Growing skin for burn victims Growing new organs Cons of stem cell research - answerHarvesting embryonic stem cells kills the embryo, what constitutes a viable embryo? Cons of genetically modified foods - answerMan should not interfere, allergens, modifications not contained-could pass in to wild species Cons of cloning - answer- reduced gene pool - animals les...

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...

EES 100 UMAINE - EXAM 2 QUESTIONS WITH COMPLETE SOLUTIONS!!

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 - ANSWER-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 d. grease trap - ANSWER-c. septic tank Sludge and scum accumulation, and ...

What is the most common cause for bacterial meningitis in children under five years of age? - Correct Answer-Haemophilus influenza type B How is giardiasis usually transmitted to others? - Correct Answer-person-to-person transfer of cysts from the feces of the infected individual Which of the following duties of state and local health agencies is intended to ensure that the public's health and welfare are protected? - Correct Answer-Regulatory responsibilities What is a measure of the am...

RS- REHS Practice Questions and Answers 100% Accurate What is the most common cause of bacterial meningitis in children under five years of age? a) Neisseria meningitides b) Group B Streptococci c) Streptococcus pneumoniae d) Haemophilus influenzae type B d) Haemophilus influenzae type B How is "giardiasis" usually transmitted to others? a) Person-to-person transfer of cysts from the feces of the infected individual b) Drinking unfiltered water from streams and lakes c) Drinkin...