Psoriasis & Psoriatic Arthritis (for at least a decade now) have led me to Humira. The results have been super since I began a few years ago. Brown spots, freckle sized, have appeared in the areas where the Psoriasis was. No one has any idea from Drs to pharmacists. .
In 2006, there was 1.15 acres of arable land per person, world-wide (i.e. 7.68 billion acres / 6.68 billion people). By 2039, there may be only 0.59 acres of arable land per person, world-wide (i.e. 7.68 billion acres / 13 billion people). Source(s): http://one-simple-idea.com/Environment1....
One acre equals 0.0015625 square miles, 4,840 square yards, 43,560 square feet or about 4,047 square metres (0.405 hectares) (see below).riginally, an acre was understood as a selion of land sized at forty perches (660 ft, or 1 furlong) long and four perches (66 ft) wide; this may have also been understood as an approximation of the amount of land a yoke of oxen could plough in one day.