Most likely, the main reason is related to water circulation in the ocean. The deep water in the ocean begins at the surfaces of polar areas. It becomes very dense due to the extreme cold temperatures and then sinks to great depths in the ocean. Because it was surface water, it carries dissolved owygen. So the cold, dense, oxygen-filled deep water flows along the ocean floor, causing the oxygen levels there to be slightly higher than the waters above it.Tags: General Science
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- In general science on page 75, why does the graph show that oxygen content begins increasing with increasing depth, starting at about 500 meters?
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- General Science Sample Lab Report
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- Do you have any references where I can learn more about how Christianity was central to the development of science?
- In General Science module 1, it says that the real inventor of the telescope is not known. Why do some history books say that the inventor is Hans Lippershey?
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- Where are the answers to the questions asked in the middle school Student Notebooks and how can these notebooks be used best?
- Which science course should we use for each grade level in Jr. High and High School?
- Do you have a document listing course descriptions and content?
- How do I access the links mentioned in the Student Notebooks?
- Can I still get General Science 2nd Edition?
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