HELP PLZ!!. 12,000 years ago, what changed that caused human populations to increase tenfold? Choose the best answer.
Agriculture made it possible for land areas to support larger populations.
Improved hunting tools and methods made it easier to get food.
Civilization made it easier for people to cooperate and share food.
People in earlier times had much larger families which made the population grow rapidly.

Agriculture made it possible for land areas to support larger populations.

Explanation:

I took the test and got it right ez.

a.tensions between the colonial elites and the backcountry men of virginia.

answer: the time zones used to be whatever the local authority wanted them to be. one town might have 6am whenever the sun came up and another town had 6am 10 minutes later.  

the trains had a hard time when their orders said to be at a certain point at 6am.  

6am, but who's 6am.  

the railroads got together and set the time zones more or less along the longitude lines across the country.

explanation: