Which of the following statements about the changes in American society between 1900 and 2000 is not true? There has been a decline in the percentage of Americans who identify themselves as Protestants.
The average age of Americans has risen.
There has been an increase in the percentage of Americans who live in urban areas.
The percentage of whites has decreased.
The percentage of blacks has decreased.

The percentage of blacks has decreased. is false

Explanation:

the speech revealed that eastern european countries were no threat to their neighbors, which led to the creation of the truman doctrine i think this might be correct.

the neolithic revolution began the era of permanent societies, the reliance on the limited amount of land gave way to political organization and this political organization caused social organization which was divided by amount of property and power.

the neolithic revolution (new stone age) was the first agricultural revolution. it was a gradual change from nomadic hunting and gathering communities and bands to agriculture and settlement. this period is described as a "revolution" because it changed the way of life of communities which made the change.

sentence:

let´s farm and domesticate these animals so we do not be hunting in the woods all the time