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Trees have evolved leaves in a wide range of shapes and sizes, ... They can be broad or needle-like, simple or compound, lobed or ...

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 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 ...

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 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?

How Do Trees Know When to Leaf Out in the Spring? | The Outside ...


May 5, 2002 ... Though their actual dates of bud-break vary, you can count on trembling aspen ... Over generations, trees have proved adaptable to gradually ...

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, ...

Trees: Facts (Science Trek: Idaho Public Television)


Roots can grow deep into the soil and in some types of trees they can branch out for great distances. ... The leaves of the tree have a huge job in the life of a tree.

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


If leaves are responsible for producing food by photosynthesis, how can plants ... Photosynthesis: How do we get oxygen in winter when trees don't have leaves ...

How do we get oxygen in winter when trees don't have leaves and


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 a...

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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 ...

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 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?