Botulinum toxins are the most lethal toxins known. For type A toxin, the toxic dose is estimated at 0.001 mcg/kg (Franz 1997); the lethal dose for a 70-kg person by the oral route is estimated at 70 mcg, by the inhalational route 0.80 to 0.90 mcg, and by the intravenous route 0.09 to 0.15 mcg (Sobel 2005).
1 hectare = 2.47105381 acres. .07 hectare= .17 acres per person. about 7500 square feet per person. While this figure produces a result of around 5-6 people per acre, there are plenty of caveats to consider. If the soil is not ideal, increase the land. If the growing season is short, increase the land.
Name: terri Question: How many acres are in a square mile? Hi Terri, In farming communities a square plot of land which is 1 mile by 1 mile is referred to as a section of land. It contains 640 acres. A section is usually divided into four equal parts which are called quarter sections, and this is the size plot that farmland is typically sold in. Each quarter section consists of 160 acres.