Finding new routes to places would allow for faster trading. This had a few advantages. The less time voyage took, the less expensive it was. It also meant a quicker turn around, and less spoilage of certain goods
Basically add up all the sides... And that's the perimeter don't forget to add your units
In the middle of the ocean basin
Explanation:
Fist, the forces acting on the plate are tensional force which act away from each other.
When these forces act away from each other, they cause the place of their origin to stretch hence creating a new feature
I believe the first one is 'physical geography' :-)
It is when warm air rises then cools then drops then rises then cools then drops etc