emaQuestion 1 (Multiple Choice Worth 2 points)
How would a person most likely become ill from overly acidic water?
Question 11 (Essay Worth 5 points)
<object:standard:la.910.2.2.3>Summarize your findings from the Water Quality Lab. Be sure to include your observations and the sources of each water-quality issue you investigated.
Question 12 (Essay Worth 5 points)
<object:standard:sc.912.n.1.1; ma.912.s.3.2=””>Bethany has a fish tank at her house. She uses the following data table to keep track of the nitrate and phosphate levels in the tank.
| Month | Nitrates | Phosphates |
| January | 8.0 mg/L | 0.010 mg/L |
| February | 8.1 mg/L | 0.010 mg/L |
| March | 7.9 mg/L | 0.009 mg/L |
| April | 9.2 mg/L | 0.012 mg/L |
| May | 9.7 mg/L | 0.020 mg/L |
| June | 9.9 mg/L | 0.029 mg/L |
| July | 10.6 mg/L | 0.032 mg/L |
| August | 10.8 mg/L | 0.038 mg/L |
| September | 11.0 mg/L | 0.036 mg/L |
Bethany notices that the fish tank is gradually filling with algae. Based on the data she has collected, when did the problem most likely start? Explain.
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