Trees need leaves primarily because of photosynthesis and respiration.
Photosynthesis is the process by which carbon dioxide is converted into nutrients
To do that, the chlorophyll in the leaves starts to break down and the food that the
leaves have been making is stored inside the tree instead of in the leaves.
Oct 30, 2009 ... You think you know why leaves fall off trees. ... They have the same root as the
word scissors, meaning they are designed, like scissors, to make a cut. ... You
can't see this without a microscope, but if you looked through one, ...
Oct 14, 2016 ... Most deciduous trees have broad leaves that are susceptible to being ... Without
leaves to get in the way, wind-blown pollen can travel longer ...
Nov 3, 2010 ... Have you ever wondered why some trees have leaves while others have ... And
of course, as can only be expected - there are exceptions to all ...
The trees perform the process of photosynthesis and produce food for itself and
when tree grows the metabolism increases and so meet the extra needs it has to
All trees need at least four things to live: sunlight, water, soil and air. The tree
leaves have a special chemical called chlorophyll that can turn the sunlight into a
The other answers to this question are correct about the various and varied
sources that generate the oxygen in the atmosphere. But what is missed by these
The other answers here are great, but I have two minor points to add in addition
to the excellent ... they have no leaves? Why do trees shed leaves in winter?
Jul 12, 2009 ... Why do tree leaves have different shapes? The shape of a tree's leaves are a
response to the tree species' long term ecological and ...