Answer:
the correct set up is (8.6 mg/L - 3.3 mg/L divided by 2014-1965) = 0.11 mg/L per year.
Explanation:
The formula to calculate the average change of dissolved oxygen per year in the lake is:
Dissolved oxygen is the amount of oxygen gas that is present dissolved in a given volume ofwater as a solution.
Dissolved oxygen is especially important for aquatic animals as it provides the main source of oxygen required for respiration by these animals.
Due to human activities resulting in water pollution and heating of water bodies, the amount of dissolved oxygen in water bodies is on the decrease.
To calculate the average change of dissolved oxygen per year in a particular lake, the following formula can be used:
Therefore, the average change of dissolved oxygen per year in the lake gives a picture of how human activities affect aquatic life in the lake.
Learn more about dissolved oxygen at: https://brainly.com/question/26073928
