Why Do Leaves Turn Upside down before It Rains?

Answer

Before a rainstorm the leaves of some trees such as maples will turn upside down. The reason for this is that they are reacting to the change in the humidity.
Q&A Related to "Why Do Leaves Turn Upside down before It Rains..."
Just as the leaves of trees turn up before a rain shower, vegetable plants also flip over their leaves as a sign of a water problem. However, you have to do a little observation to
http://www.ehow.com/info_8755185_do-leaves-turn-up...
http://www.chacha.com/question/why-does-tree-leave...
The bottom of the leaves are more porous so they absorb water faster. The top surface is harder to absorb sunlight and shed dirt.
http://answers.yahoo.com/question/index?qid=200804...
A change in humidity could cause the stomata on the leaves to close, resulting in a slight change. report this answer. Updated on Wednesday, February 01 2012 at 10:11AM EST. Source:
http://www.kgbanswers.com/why-do-leaves-turn-over-...
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