How do you know what evidence you can use to support your claim? answer quickly please :))

Well your claim needs to have evidence of course since you are making a statement. It also depends what you are working with. And you know that the evidence supports your claim when it answers your claim.

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!