People who developed innovative farming methods to support large urban populations.
Answer:
by how much sun it receives.
Explanation:
Answer:
Part of this border follows a natural boundary.
Explanation:
The answer is this one because Its a natural line between texas and Mexico and there are no mountains
Answer:
Plate tectonics cause earthquakes
Explanation:
Earthquakes are caused by the movement of plate tectonics. Where there is a fault line there is plate tectonics, and when that fault line moves the plates shift and cause the earth to shake AKA an earthquake.
Hope this helps! :D
Ecuador & Columbia
Both are Bordering Peru in the North.