Which of the following is not a reason why rivers were important to early trade

Aempty box is shaped like a rectangular prism the box has a base area of 9/10 square foot and a height of one-third foot how much packaging material is required to fill the box is it

Canada must balance the economic opportunities offered by its natural resources with the need to maintain links to the united states maintain high tariffs preserve the environment protect its borders

The picture above depicts the berlin wall which divided in half from the 1960 to 1989 which type of boundary was the berlin wall