Which factor is likely to be of concern in a developed nation in the twenty-first century? WILL MARK BRAINLIEST

A. low GDP

B. slowing economic growth

C. populations that are growing too quickly

D. labor shortages in manufacturing

Round arches allowed the romans to create structures with

2. what was the dred scott decision about? what do we learn from this supreme court case?

Human rights groups in the 20th century worked to: o a. european imperial powers maintain control over their colonies. o b. convince citizens in impoverished countries to embrace nationalism. o o o o c. ensure that people around the world were protected from brutal treatment. o d. weaken the influence of international organizations like the united nations. sub