States have been placed in the following. categories: Known- where states have either declared their programs or there is clear evidence of chemical or biological weapons possession. Probable- where states have been publicly named by government or military officials as probable chemical or biological weapons.
It is much more complicated than this, and hopefully you can see that the answer to your question is based on many variables. There are many ranches in Texas that are greater thn 50,000 acres, some as large as 250,000 acres, and a handful larger than that. A common sized ranch would be around 500 acres.
One acre equals 0.0015625 square miles, 4,840 square yards, 43,560 square feet or about 4,047 square metres (0.4047 hectares) (see below). While all modern variants of the acre contain 4,840 square yards, there are alternative definitions of a yard, so the exact size of an acre depends on which yard it is based.