Scientists study bubbles trapped in ancient glacial ice todetermine how concentrations of nitrogen and carbondioxide gas have changed over time. However, bubblesin glacial ice cannot provide information about changesin phosphorus. Explain why air samples are not usefulfor this purpose, and propose an alternative method tostudy how the amount of phosphorus in a region haschanged over time.

Scientists study bubbles trapped in ancient glacial ice todetermine how concentrations of nitrogen and carbondioxide gas have changed over time. However, bubblesin glacial ice cannot provide information about changesin phosphorus. Explain why air samples are not usefulfor this purpose, and propose an alternative method tostudy how the amount of phosphorus in a region haschanged over time.

BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)

10th Edition

ISBN:9781305967359

Author:STARR

Publisher:STARR

Chapter44: Human Effects On The Biosphere

Section: Chapter Questions

Problem 2CT

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