A 50-year-old tree of a certain species may capture about 0.02 metric tons of carbon dioxide each year. In 2014, 1,562,000,000 metric tons of carbon dioxide were released
from burning coal to produce electricity in the United States alone. How many 50-year-
old trees of this species would be needed to capture this amount of carbon dioxide over
the course of a year?

78100,000,000.

Explanation:

78100,000,000 50-year-old trees are needed to capture 1,562,000,000 metric tons of carbon dioxide that were released  in the year 2014 to produce electricity from coal in the United States of America alone if each tree captured or consumed 0.02 metric tons of carbondioxide gas per year. This value get when 1,562,000,000 is divided by 0.02.

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