<span> think the answer your teachers are looking for is D, but I disagree. Both of these concepts date back to ancient Greece or earlier. They resurfaced around the 18th century. </span>
Minorities have become quicker than the white population.
This has been true in the United States since the 1960s.
The answer is C. mass production.
They abandoned the nomadic life by developing farming techniques through water management, including canal-building, water storag, drainage, irrigation.
With the prosperity which this generated, they moved on to development of almost all the techniques that formed the basis of civilized life before the industrial revolution: architecture, transport, metalworking, carpentry, pottery, glass-making, textile manufacture and leather-working as well as many processes associated with farming and food preparation. In southern Mesopotamia irrigation and flood control were necessary and this gave rise to a number of subsidiary technologies of
