Trees produce oxygen:
A mature leafy tree produces as much oxygen in a season as 10 people inhale in a year.
A Tree's Importance and Environmental Benefit
By Steve Nix, About.com Guide
Eight Reasons to Plant Trees | Trees Produce Oxygen
German Tree Plantation
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- The Urban Tree Book
- Eight Reasons to Plant Trees | Trees Make Effective Sound Barriers
- Eight Reasons to Plant Trees | Trees Produce Oxygen
- Eight Reasons to Plant Trees | Trees Become Carbon Sinks
- Eight Reasons to Plant Trees | Trees Clean the Air
- Eight Reasons to Plant Trees | Trees Shade and Cool
- Eight Reasons to Plant Trees | Trees Act as Windbreaks
- Eight Reasons to Plant Trees | Trees Fight Soil Erosion
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Tree Value, Importance, Benefits
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