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  3. figure 3 average monthly water discharge from the mississippi river...

Question: figure 3 average monthly water discharge from the mississippi river...

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Figure 3. Average monthly water discharge from the Mississippi River for the years 1930-1992 (Modified from Walker, 1994) 25000 20000 a 15000 e 10000 ฐ 5000 5 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Month Questions What is the average temperature of water in the top ş meters in April? In August? How do those values compare to the average temperatures at 15-20 meters for those months? 1. 2. Typical seawater has a salinity of 3s psu (practical salinity units). In which month is the difference in salinity of surface and bottom waters the greatest? Why do you think the difference is the greatest at this time of year 3. In which month is the salinity difference between surface and bottom waters the least? What reasons can you think of to explain why the surface and bottom water salinities become more uniform at that time 4 Water that contains 2 mg oxygen per liter or less is termed hypoxic, since at that concentration many aquatic acrobic organisms are unable to survive. How does the depth at which hypoxia is observed change over time?
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