Question

Please Help!

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.

Answer 1

Here is the table so you guys can see it better

Answer 2

It probably started around March, since after that period the nitrates and phosphates begin to increase substantially. Algae need nitrates and phosphates to grow, which is why in March, the amount fell a little

Answer 3

Thank you! so its With the sudden increase of Nitrate and Phosphate in March to April , it causes the fish tank to produce algae. right? and do you mind answering just one more question?

Answer 4

Dan took three samples of water from the creek behind his house once a month for the last six months. He tested the water and reported the results in the following data table.


*The data table is in the attachment.



Which water-quality indicators would be of concern in this situation? Explain your response. Be sure to discuss any implications these water-quality indicators could have on the environment and human health.