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3 cards from this section. Quick, good the night before a test.
Define concentration in the context of environmental science.
Think about how substances are measured in liquids.
What is the mass balance equation?
Remember it counts both adding and removing substances.
What is the fundamental quantity of interest in pollutant transport?
Think about what we measure to assess pollution.
True or False: A mass balance can only be applied to stagnant systems.
Consider how we analyze rivers.
A lake receives waste at a constant rate of 5 mg/L/day and evaporates at 1 mg/L/day. If the initial concentration is 10 mg/L, determine the concentration after two days.
Consider the rates of addition and loss for total concentration.
In a river, two tributaries contribute pollutants at different concentrations. If tributary A contributes at 20 mg/L and tributary B at 30 mg/L, how do you model these inflows into one segment of the river?
Think about how to account for different influences based on their volumes!
5 more questions in this section. Enroll free to practise them all.
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