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220 passengers x 4.75 hours x 200 pounds of Carbon Dioxide per person per hour = 21,000 pounds of Carbon Dioxide given off for the entire flight.
Red Oak trees absorb approximately 48 pounds of Carbon Dioxide per year. Therefore, 21,000 pounds of Carbon Dioxide would require 437.5 Red Oak trees to be planted in order to absorb the amount of Carbon Dioxide given off for the entire flight.