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Why do we need trees? | Discovery Kids

discoverykids.com/articles/why-do-we-need-trees/

Boy do we all need trees! Why? Let me explain. Humans, and virtually all other critters, live on a gas called oxygen. Oxygen is one of the gases found in air and ...

Top 22 Benefits of Trees | TreePeople

www.treepeople.org/resources/tree-benefits

Most newly planted trees need only fifteen gallons of water a week. As trees ... urban lot. Aside from fruit for humans, trees provide food for birds and wildlife.

Top Ten Reasons Why Trees Are Important - Forestry - About.com

forestry.about.com/od/treephysiology/tp/tree_value.htm

Life without trees, we humans would not exist on Earth. Keep a tree around. ... Let's face it, we could not exist as we do if there were no trees. A mature leafy ... Shade from trees reduces the need for air conditioning in summer. In winter, trees  ...

Why do we Need Trees? - Botanic Gardens Conservation International

www.bgci.org/education/1722/

You will need table tennis balls to represent molecules of H2, O, C, O2 and sunlight. ... How many trees do we need to produce enough oxygen for one person?

Why do we need trees to survive? - Nature conservation news

www.keepbanderabeautiful.org/why-trees.html

Trees provide us with many essential things. Humans need trees to survive - read about why.

Why do we need trees?

www.whyzz.com/why-do-we-need-trees

Whether you live in the city or the country, it's hard to imagine a life without trees. They provide shade in the summer, beautiful colored leaves in the autumn, and ...

Why Do We Need Trees? | Wonderopolis

wonderopolis.org/wonder/why-do-we-need-trees/

Apr 27, 2013 ... Each Arbor Day, people are encouraged to plant and care for trees. ... Of critical importance to humans, they also play a major role in producing ...

Do trees really need humans to survive? - Quora

www.quora.com/Do-trees-really-need-humans-to-survive

It depends on where the trees are. If you plant a palm tree in Moscow, it can't survive without a greenhouse and the human-managed infrastructure it would need ...

How many trees are needed to provide enough oxygen for one ...

www.sciencefocus.com/qa/how-many-trees-are-needed-provide-enough-oxygen-one-person

Aug 23, 2012 ... Trees release oxygen when they use energy from sunlight to make glucose from carbon dioxide and water. ... A human breathes about 9.5 tonnes of air in a year, but oxygen only makes up about ... How long do parrots live?

Popular Q&A
Q: Why do the Human raceand animals need trees?
A: human race and animals need trees because tree's a re pretty much the only thing keeping us alive besides oxygen and animals need them to live in and to eat fro... Read More »
Source: wiki.answers.com
Q: Why Do Trees Need Sunlight?
A: Types Some trees are evergreens and do not shed their leaves every year. Others are deciduous and lose their leaves each autumn. New leaves grow in the spring. ... Read More »
Source: www.ehow.com
Q: Why Do Humans Need Lipids?
A: Lipids, or fats, are categorized into three categories: saturated fat, trans fat and unsaturated fat. Saturated fat and trans fat can increase cholesterol while... Read More »
Source: www.ehow.com
Q: Why do humans cut down trees?
A: to make paper or wood things, but i sure hope they replant the trees. : X. Read More »
Source: wiki.answers.com
Q: Why do humans need to brush their teeth?
A: We don't need to brush our teeth, but about 1400 years ago we discovered that doing so will allow our teeth to last longer. If other animals brushed their teeth... Read More »
Source: www.quora.com