The map below shows dark bands that indicate long mountain ranges on the west coasts of north america and south america. name the type of boundary and explain how tectonic plates interact at this type of boundary to create mountains.
Tectonic plates push together at the boundary because the plates are always moving and they never stop. when they are pushed together, they go against each other and since there is no place to push, they both push upwards. it'll take a long time for them to create mountains.