How did cataracts affect Egypt and Nubia?
O
A. They were barriers for boats and separated Nubia from Egypt.
O
B. They were dams that allowed Nubia to control the flow of water to Egypt.
C. They marked the areas where the best farmland was found.
D. They allowed travelers to cross the Nile without a bridge.

a countries leader should be motivated by the common good of the country.

it for the workers lik if you have a job thats what its for

explanation:

depending on what kind of map for example a pltical maps works in many ways this iss how it works it shows the areas and places the democratics and the repbulcicans reside for example if   texas chooses trump for president there a republican state and if   califronia chooses hillary there a democratic state.