Answer: steep slopes, removal of vegetation, earthquakes, and an undercutting of a slope.
I don't think war is important unless another country wants to start one, then i think it is important to try and win, so that the country wanting to war knows not to mess with your country. but i don't believe that someone should go looking to start a war whenever it is unnecessary.
Hope i helped. -Sheckelstein.
A colon is used to explain a enumeration. A enumeration is a complete, ordering listing of all the items in a collection. I searched it up give the credit to Google.