What happens to the surfaces of bodies without an atmosphere and no erosion?

If there's no atmosphere and no erosion than the surface of the bodies remains the same, unchanged. The atmosphere causes the erosion, be it mechanical, chemical or organic (indirectly), and all of the erosion types cause the surfaces of the bodies to change their forms over time because they break them apart, either in small or big pieces. So once the atmosphere is non existent, the erosion is automatically non existent as well, thus the surface of the bodies remains as it is. 

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!

Don’t use up to much of them it leads to pollution