What made the Fertile Crescent a good place for growing crops? access to several different seas
favorable climate and rich soil
the protection of the mountain border
warm weather and seasonal droughts

D, the answer is letter d. because even though fossil fuels take a very long time to form, they do form in the ground just like coal and others.

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!