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Why do trees need leaves? | Reference.com


Trees need leaves primarily because of photosynthesis and respiration. Photosynthesis is the process by which carbon dioxide is converted into nutrients that ...

Why Do Trees Have Leaves? | eHow


The primary reason why trees have leaves is to produce photosynthesis. This is the process by which leaves collect energy from the sun and use it to ...

www.ask.com/youtube?q=Do Trees Need Leaves&v=-u4MZ0UDokY
Aug 23, 2013 ... Question and Answers - Why Do Trees Need Sunlight - Tell Me Why ... So, without sunlight, plants and trees can't make food and their leaves, ...

Do leaves on trees make oxygen? If they do during the winter when ...


Nov 12, 2013 ... If they do during the winter when the leaves fall off the trees is there less ... Yes, leaves on trees produce oxygen through photosynthesis.

Why trees shed their leaves in the fall | Earth | EarthSky


Oct 14, 2015 ... Most deciduous trees have broad leaves that are susceptible to being damaged during cold or dry ... Why do tree leaves turn red in fall?

What makes leaves sprout in the spring? - Phys.org


May 17, 2011 ... So in late August and early September in the northern hemisphere, when precipitation rates drop, that can function as a cue and have the tree ...

The Terrific Trees - US Forest Service


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  ...

Why Leaves Really Fall Off Trees : Krulwich Wonders... : NPR


Oct 30, 2009 ... You can't see this without a microscope, but if you looked through one, ... If trees kept their leaves permanently they wouldn't have to grow new ...

Leaf Shapes and Strategies - Penn State University


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 ...

Why do trees lose leaves during winter? If leaves are responsible for ...


Let me tell you what happened during the October Surprise storm in Buffalo in 2006 (now .... They do need time to become dormant. That's why a late spring cold ...

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Learn About Leaves - Home Science Tools


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.

Why Plants have Leaves - Elementary Science Program


Leaves do this by using sunlight for energy to take apart water from the ... Water gets to the leaf through a set of pipes inside the tree which goes all the way ...

Why Does My Tree Only Have Leaves on One Side?


Jun 7, 2016 ... “Half of one of my maple trees has leaves. The other half looks like it started, but then there is nothing. Is this normal due to a long winter?