The best explanation why the area between Spain and Gaul was not part of the Roman empire until that later period was a culmination from both undesireability and difficulty in accessing this region due to its mountaineous nature. So I would wager the answer being both C and D - undesireability and difficulty in access.
Answer:
you not give me full question so I'm not sure
Nagasaki and Hiroshima.
Radiation, I think? Research this one to be sure though. All of the others seem fairly obvious.
It is D. The purpose of the system of checks and balances is to keep all the branches of government with equal power.
Answer:
Rosie the Riveter" inspired a social movement that increased the number of working American women from 12 million to 20 million by 1944, a 57% increase from 1940.
Explanation: