Practice Introduction To River Systems And Contaminated Sediment (2) - Evaporation from Different Surfaces

Practice: Introduction to River Systems and Contaminated Sediment

Lesson 2Evaporation from Different Surfaces

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9 questions

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3 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
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Quiz
3 questions · about 2 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What does DNAPL stand for?
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What type of liquid has a density greater than water?
Question 2.
Name the three components of a river system.
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Think about the environment around a river.
3Question 3.
What does the term DNAPL refer to in environmental science?
- Dense non-aqueous phase liquid
- Density neutral aqueous phase liquid
- Dry non-aqueous phase liquid
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Consider what happens when different types of liquids spill into water.
4Question 4.
True or False: DNAPLs float on water due to their density.
- True
- False
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Recall the properties of density comparisons.
Question 5.
Calculate the impact of a DNAPL spill in a hypothetical river where the flux from sediment is observed to be 0.1 mg/L/day. If the goal is to keep the concentration in the water below 0.05 mg/L, what measures could be taken to mitigate this?
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Consider both physical dilution methods and chemical treatment options.
Question 6.
Discuss a scenario where a river with frequent DNAPL spills shows a significant reduction in biodiversity. Evaluate the ecological impacts of such contamination.
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Think about which organisms are most affected by contaminants.

5 more questions in this section. Enroll free to practise them all.