Applications and Investigations in Earth Science (9th Edition)
Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN: 9780134746241
Author: Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher: PEARSON
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Question
Q4.21. Which of the following statements about the global phosphorus cycle is true? (Hint: Please click here to see a figure of the post-industrial global phosphorus cycle.) Phosphorus applied to crops as fertilizer always stays within the terrestrial subsystem. Very little of Earth's phosphorus is found in sediments and rocks. Fertilizer application has decreased phosphorus availability in terrestrial ecosystems. The mining of phosphate ore is a significant source of phosphorus for fertilizers. Submit
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Transcribed Image Text:Q4.21. Which of the following statements about the global phosphorus cycle is true? (Hint: Please click here to see a figure of the post-industrial global phosphorus cycle.) Phosphorus applied to crops as fertilizer always stays within the terrestrial subsystem. Very little of Earth's phosphorus is found in sediments and rocks. Fertilizer application has decreased phosphorus availability in terrestrial ecosystems. The mining of phosphate ore is a significant source of phosphorus for fertilizers. Submit
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