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About trees:
1. Trees receive an estimated 90% of their nutrition from the atmosphere and only 10% from the soil.
2. Trees grow from the top, not from the bottom as is commonly believed. A branch's location on a tree will only move up the trunk a few inches in 1000 years.
3. There are about 20,000 tree species in the world.
4. The largest area of forest in the tropics remains the Amazon Basin, amounting to 81.5 million acres.
5. Arbor Day was first observed in Nebraska in 1872. That state is now home to one of the world's largest forests planted by people - over 200,000 acres of trees.
6. Some trees can "talk" to each other. When willows are attacked by webworms and caterpillars, they emit a chemical that alerts nearby willow of the danger. The neighboring trees then respond by pumping more tannin into their leaves making it difficult for the insects to digest the leaves.
7. The most massive living thing on earth is the Giant Sequoia in the Redwood Forest of California. It stands nearly 30 stories tall and 82.3 feet in circumference. Its weight is estimated at 2,756 tons.
8. The averaged size tree can provide enough wood to make 170,000 pencils.
9. A single tree produces up to 260 pounds of oxygen a year. That is more than enough to supply oxygen to a family of four people.
10. A tree can absorb as much carbon in a year as a car produces, driven over 8 500 miles.
11. Trees planted in and around property can raise that piece of land’s value by up to 20%.
12. An acre of trees can produce up to 4000 pounds of wood every year.
13. Trees can bring down your air conditioning costs by up to 20 percent.
Tree trivia from: http://www.weekendgardener.net/tree-information/facts-about-trees-80608.htm and
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and according to area and species of tree, results will be figured in terms of stormwater, electricity, air quality, property value, natural gas, & CO2.
