Balsa wood is classified as a hard wood!
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The earth is approx. 6,588,000,000,000,000,000 tons.
175
The bark of an older redwood tree is fireproof.
65
One ragweed plant can release as many as one billion grains of pollen!
51
Nylon is made from coal and petroleum.
42
4.5 pounds of sunlight strike the Earth each day.
27