Give to examples of human activities that can affect the earth system

Aprovision of the general agreement on tariffs and trade treaty (gatt)increased taxes on services between the us, mexico, and canada. reduced international tariffs on industrial goods by forty percent. increased us tariffs on agricultural products by forty percent. ended taxes on goods traded by the us, mexico, and canada.

The physical feature that makes up part of the border between canada and the united states is the

How much time on average do americans currently spend watching tv and videos per day?