The serves as a border between the northeastern united states and canada

Not sure but in the bridge that crosses Niagara Falls is a transporter

Ibelieve the answer is c also i'm in k12 too

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!