Post Lab Assessment RG Water Analysis
What is the median of the following numbers - 15,13,8,19,25,32,28,6
16
Which of the following statements is true about nitrates?
Nitrate is a nutrient for plants, algae, and bacteria
Which statement might be most accurate regarding the TDS of the river and the pond?
The pond has higher TDS because it is more stagnant and holds more particles than in the river
Why does the Nature Center observation pond have more nitrates than the monitoring well?
The pond has more bird and turtle fecal matter
Why might we expect the pH of the river to differ from the pond?
The river is fed by different pH sources from upstream
Why would the river have higher dissolved oxygen than the groundwater?
The river water is exposed to the atmosphere and there is motion (i.e. waves) in the river whereas groundwater is trapped below ground.
Evaluate this statement: The pond is expected to have less dissolved oxygen in the river because ponds are vulnerable to eutrophication because the nutrients carried into them continue to buildup and uses up the oxygen; in contrast, the nutrients can be carried away in moving water.
This statement is completely true.