Which of the following was an effect of farming on the development of early river valley civilizations?

a. surplus food allowed groups of people to specialize and stratify, which led to laws and governments.

b. farming produced little food, so people developed government to determine how to distribute crops.

c. because farming produced extra food, people were able to form less permanent settlements.

d. as farming proved to be too difficult, many people needed to hunt animals and gather wild plants.

Surplus food allowed groups of people to specialize and stratity which led to laws and governments

Explanation:

in 1897, pershing became a tactical officer at west point, and that's where he was given the nickname "black jack." pershing's first name is "john," for which "jack" is a nickname, and he was a white man who commanded black troops. hence "black jack".

music always has an important role in culture and societies, infact for example rock’n roll music has conditioned different areas of pop culture above all in the 60s. in the modern american society its role is different.

unfortunately many think about how some unfortunate events happened to the columbine high school shootings can be related to rock music just because the teenagers involved listened to this kind of music.

i think that we can valorize the change to take refuge in this genre of music to keep on in everyday life, teenagers are comfortable when they can listen to a song about a specific problem. realizing that someone else is living your personal drama too can them to feel less lonely nowadays.