What factors affect the processes operating along a stretch of coastline?

The key factors which affect coastlines are:

The rock type/geology  The fetch of the wave and the strength of the wind.  The angle of the slope – steep slopes erode more violently and frequently. Weather conditions – freezing temperatures and heavy rain increase weathering and the rate of erosion.

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!

Ascenario that doesnt  include any modern objects like electricity