Select all the correct answers. two tectonic plates of different densities collide. which of the following could form at the plate boundary? island mid-ocean ridge rift valley trench volcano

A trench would seem a little more logical

It is the doctrine that the us had the right and duty to expand throughout north america. it just means they believed they had the right to expand westward and they did! they stated with the 13 colonies and then they kept moving gaining different territories throughout the years

The answer is d if you are on edgenuity.