Do bonsai trees need sunlight or UV supplement?
Bonsai trees usually need sunlight but should not be exposed too much to the sun. They can get damaged if they are exposed to direct sunlight for a long time. See more details at http://www.ehow.com/how_6320830_make-oak-bonsai-tree.html.
Yes. All plants do.
Yes exposure to sunlightWould be preferred , how much sunlight and water would depend what type of tree .
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