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FACTOID!!
The trembling aspen tree takes its name from the fact that the slightest breeze causes the long flat stems attached to the leaves to tinkle.


Arsenic and old brakes


Arsenic and old brakes
Dr. Ma from the University of Florida has discovered that the Chinese brake fern loves arsenic! The fern can not only tolerate arsenic, it thrives on it, and researchers have found concentrations of 20 grams of arsenic per kilogram of foliage. It is possible that the brake fern could be used to clean up the soil in sites that have been contaminated with arsenic.
FEBRUARY 3, 2001
The Economist
FEBRUARY 3, 2001

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