The study also noted that when tilled soil particles come in contact with air, soil organic matter is lost through the process of oxidation.

VOA: special.2010.09.28

But the gradual buildup of allergens in Clark's study minimizes the risk, and the process is done in the hospital under strict supervision, she said.

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They are significantly farther along in the laborious documentation and geologic study process to begin digging.

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Now that the missing link has at last been revealed, astronomers will be able to study the torquing process in greater detail.

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