4. Describe what seeded water is, and why we don\'t need a seed for this experim

Question

4. Describe what seeded water is, and why we don't need a seed for this experiment? Or maybe we do need to seed them? Which one? 5. What is a minimum concentration of oxygen that has to remain in water after 5 or 7 days? Why do we need to have a limit for minimum DO in water? 6. What to do if initial DO is low? 7. When bubble of oxygen will be introduced to bottle after measuring initial DO, and this bubble will stay for the 5 days, what reading you expected to have for 5-days DO: higher than supposed be, lower than supposed to be, or it should not matter? Please justify your answer

Explanation / Answer

4- Seeded water can be termed as the dillution of water use ofr various dillutions of BOD samples. we use this to confirm the quality of dillution water. fir thi sexperiment we do need to use the seed becuase we use the glucose glutamic acid and seed in this experiement.

5 -Oxygen concentration will be remain same after 5 or 7 days. we need a limit of Dissolve oxygen which is 7.95 mg/L at 270 C.

7- Bubble o oxygen is bottled and after 5 days it will not be matter. it wl be constant.

6- we have to add the minimum amount of water if dissolve oxygen is low.

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