
Ecology 5th Edition by Manuel Molles
النسخة 5الرقم المعياري الدولي: 978-0070171688
Ecology 5th Edition by Manuel Molles
النسخة 5الرقم المعياري الدولي: 978-0070171688 تمرين 19
Do the oceans act as a source or a sink for phosphorus (refer to fig. 19.2)?
Figure 19.2 The phosphorus cycle. Numbers are 10 12 g P or fluxes as 10 12 g P per year (data from Schlesinger 1991, after Richey 1983, Meybeck 1982, Graham and Duce 1979).
Figure 19.2 The phosphorus cycle. Numbers are 10 12 g P or fluxes as 10 12 g P per year (data from Schlesinger 1991, after Richey 1983, Meybeck 1982, Graham and Duce 1979).

التوضيح
While looking at the phosphorous cycle, ...
Ecology 5th Edition by Manuel Molles
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