<span>the answer to this question is refraction</span>
Answer:
landslide
Explanation:
This question is related to a picture. In the picture you can see that a small town was affected by a landslide located near a steep hill. As the statement reads, it can be a destructive process as not only is the countryside affected by removal of the top earth layer along with all the vegetation in that area, consequence of heavy rainfall or a mayor earthquake or shift in landmass, but it also turns into a constructive process as at the bottom of the hill, where the landslide or mud accumulates, the debris forms a new layer over the old and it is then seen as constructive.
A polar region tilted away from the sun has six months of winter darkness. It is almost night there for 6 months straight.
Artificial Boundaries, because countries are way more likely to dispute and fight wars over this type of boundary, than natural boundaries <span />