How much oxygen does an average 50 year old tree provide?

260 pounds of oxygen in a year

Explanation:

divide 260 by 365 to get how much in a day, or divide 260 by 30 to get how much in a month

linnaeus is the father of taxonomy, which is the system of classifying and naming organisms. one of his contributions was the development of a hierarchical system of classification of nature. today, this system includes eight taxa: domain, kingdom, phylum, class, order, family, genus, and species.

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