Trees supply us with wood for building. There are two main types of wood. The broadleaved trees, like oaks, produce "hardwood." The conifers, like pines and cedars, give us "softwood." Which of these items are made from wood? Move your cursor over them to find out.
Most people understand that trees are precious natural resources. This is why forests and woodlands are watched and managed. It is also why every year more trees are being planted and grown in the United States than are being cut down.
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