FQ#3-Leaves, Part II

Last week we estimated the average number of leaves on a lawn. This week our question is if we burned the leaves, how many (little-c) calories would be released?

FA#2-Leaves

Estimate the average area of an American lawn (~200 sq.m) and multiply that by an estimated number of leaves per square meter (~50 leaves/sq.m). 200*50=10,000 or 1E4, so FA#2 is 4.