Some trees can move water from their roots to their leaves at a rate of 25 millimetres (1 inch) per second.
Choose your poison
Choose your poison Some researchers say that the ban on using toxic
anti-fouling paints containing tributyltin (TBT) may not be as good
for the marine environment as previously believed. TBT is used on
the hulls of boats to kill barnacles. Since the ban, organisms such
as mollusks which had been harmed are recovering, but new problems
are showing up which are being blamed on other marine anti-fouling
agents being used as a substitute for TBT. 8 MAY 1999, P. 23
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