Answer: Right choice:
c. He was committed to states' rights and believed that to save the Union concessions must be made to the South.
Explanation:
President James Buchanan tried to preserve the unity of the Union by different means but he wasn´t succesful in assuaging rising tensions North-South. He tried to prevent anti-slavery agitation in the North. He enforced the Fugitive Slave Act. Southern states began to secede in his last months in office, spurred by the victory of Abraham Lincoln in the 1860 presidential election.
wealth of the Italian city-state played an important role in the Renaissance. This wealth allowed prominent families to support artists, scientists, and philosophers spurring on new ideas and artistic movements
That would be productivity.
It was the year 1798 that Thomas Malthus predicted that the humanity would be met with mass starvation. His prediction was based on an assumption that human population would far exceed the means of producing food and that we just would not be able to produce enough food for everyone. But the technological advancement and the advanced farming techniques allowed us to increase productivity and thus avert this prediction.
