Chemistry, 16.10.2019 21:00, timithythaxton
Alake has water quality as follows: dissolved oxygen, 60; nitrate, 6.10 (mg/l); phosphate, 0.8 (mg/l); and ph, 5.5. answer the following: what is the wqi of this water if the weighting factors of the corresponding water quality parameter are 0.3, 0.2, 0.2, and 0.3, respectively? what is the wqi of this water if the weighting factors of the corresponding water quality parameter are 0.5, 0.2, 0.2, and 0.1, respectively? why are they different? how would one determine the weighting factors of each water quality parameter?
Answers: 2
Chemistry, 22.06.2019 15:00, alanmarcus22
What does the symbol (โhfus) indicate in a phase change?
Answers: 1
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