In what ways are the United States and Mexico similar

In stage 2 farmers used the land primarily to grow food for their families and their small communities.

What major factors play a role in global warming? 1. human activity and normal climate conditions 2. natural factors and human activity 3. normal climate conditions and abnormal human activities 4. abnormal human activities and natural factors

Answer this asap. why did the americans go to china? a. trading b. exploration c. land d. live stock