In the 1800s, the boundaries between the united states and mexico changed drastically because of
a.
a revolution in america
b.
changes in technology
c.
a war between the two countries
d.
the collapse of the mexican government

What is associated with mid-ocean ridges?

How is france’s culture important to its economy

Which of the following statements best characterizes changes to agriculture in the united states since 1900? a. increased mechanization has reduced the need for labor.b. increased mechanization has increased the need for water, thereby increasing the need for labor.increased mechanization has increased the use of land, thereby increasing the need for labor.d. increased mechanization has increased food production, thereby increasing the need for labor. select the best answer from the choices provided.