Answer:
12.000
Explanation:
di di neolithic Revolution civilizations have begun around 12.000 years ago. It coincides with the end of the last ice age and the beginning of the current geological epoch, the Holocene.
D or c because one of them was agriculture that would be c but they also did the other two known as d but swaying towards c
It is C the mantle becauce the crust is the where we live I think of it as the crust of a sandwhich and the core it the center of the earth
Surprisingly, there are 196 countries today! hope this helped
