A single tree produces about 2.6 x 10^2 pounds of oxygen each year. The Amazon rainforest has about 3.9 x 10^11 trees. About how many pounds of oxygen are produced in the rainforest each day? 2.8 x 10 ^ ____________________?
The amount produced by one tree times by how many trees: (2.6 x 10^2) x (3.9 x 10^11) 260 x 390000000000 = 101400000000000 pounds of oxygen each year 101400000000000 / 365 = 280000000000 each day (rounded up)
