What are some of the challenges in deciphering what is on ancient papyrus?

Some of the challenges are:

Finding out what the characters carved/written on the papyrus are because the papyrus is so weathered and roughed up.
Then actually deciphering the characters was another challenge.
You basically had to have an idea of what the characters meant ^^

Humid continental climate is found in the interior of continents between the 30 and 60 degrees latitude, but usually above the 40 degree line.   40 degrees north of the equator means less direct sunlight and therefore less warmth.   this climate is mainly found in the northern hemisphere since there are no major landmasses in the southern hemisphere.  if you live in northern indiana, you know all about humid continental because that is the climate type you have!

The answer is    d.  central highlands