ncartier03 ncartier03 06-12-2016 Mathematics contestada A single tree produces about 2.6 × 10² lb of oxygen each year. The Amazon rainforest has about 3.9×[tex] 10^{11} [/tex] trees. About how many pounds of oxygen are produced in the rainforest each day ? Enter your answer in the box. 2.8 × 10 lb