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question 9

Safari File Edit View History Bookmarks Window Help 15% 100 Wed 10:41 PM shs.blackboard.com 0 9. Which lake in Figure 3 has greater turbidity? Percent Surface Light 10. Which lake in Figure 3 has the larger photic zone? 11. Which lake in Figure 3 has greater secchi depth? Lake A Lake B 12. Which lake in Figure 4 is stratified? 13. Which lake in Figure 4 has the deepest epilimneon? Figure 3. 14. Which lake in Figure 4 likely has greatest water clarity? Temperature 15. Which lake in Figure 4 likely has the greatest volume of Lake A oxygenated water? 6

Explanation / Answer

9.We can assume here that the depth is increasing downwards and percent surface light value is increasing from left to right. Turbidity is a measurement of water clarity that depends on the presence of total dissolved solids. It is based on the amount of light scattered by particles in water column. The clarity of water is affected by the amount of sunlight penetrated.

In the given fig, Lake B has greater percent sunlight with depth compared to Lake A. Thus the Lake B has greater turbidity than Lake B. With depth penetration of light decreases and water gets calm resulting in decreasing turbidity.

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