The theory of suggests that the crust of the earth moves about on the upper mantle

The correct answer is plate tectonics. This theory encompases many different explanations for litosphere behavior which in turn means that it also encompases the theory that the crust moves about on the upper mantle. It also explains how continents are formed and how mountains grow and how tectonic plates hit each other and many other things.

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!

Are there any words that will you