I would choose non-polluting energy source and useful in remote areas - that is if there are plants and industries that are away from the general population.
Answer:
The most important contributions is that the Byzantium Empire was able to preserve a lot of the knowledge and culture from the Roman and Greek Empires.
"<span>a. Masters could reclaim slaves who fled to other southern states" is the best option from the list, since this was one of the most controversial acts that was one of the leading catalysts for the outbreak of the Civil War.</span>
Joseph Stalin. Hitlers biggest rival and leader of the soviet union.
It made the state number even so there were an even number of slave states and non-slave states. It also abolished slave trade in Washington, d.c. becasue many people were angry about there being trading there.
