What is the total surface area of a human lung

the total surface area of a human lung IS 70 TO 75 square meters

Explanation:

Estimates of the total surface area of lungs vary from 50 to 75 square metres (540 to 810 sq ft); although this is often quoted in textbooks and the media being "the size of a tennis court"

good thing- during decomposition the organic molecules in organic matter are broken down into simpler organic molecules that require further decomposition or into mineralised nutrients

bad thing- it can be harmful in crop productivity

answer; i believe the correct answer is (replication is not conservative);