<span>Four clear options emerged for the freedmen and women after the war: obtain land, move, work for former masters, or sharecrop. Some freedmen were able to obtain their own personal land to work to support themselves and their families. Others opted to move to the cities and the North to find work that was not agrarian based. Directly after the war, plantation owners established a contract labor system that employed their former slaves</span>
Ans: The Fugitive Slave Act of 1850 was passed by Congress as one provision of the Compromise of 1850. The harsh terms of the act angered many Northerners and contributed to the sectional division over slavery that led to the American Civil War.
I believe the answer is D. Hope this helps.
There are many of them but the most common are:
1.) Photosynthesis
2.) Solar Energy
3.)Thermochemical Reactions