Answer:
Description 1: "This need grew with the growth of the population" -: Skilled workers
Description 2: "Largest group of immigrants" -: Slaves
Explanation:
In the United States or Western Hemisphere contest, it is widely known that aside from European colonists or settlers, the largest group of immigrants are the slaves, which was a result of the majorly trans-Atlantic slave trade from West African territory.
On the other hand, in the process of developing the region of the United States and Western Hemisphere generally, there is a need for skilled workers in the industrial sectors of the country. For example infrastructural development, health care system, etc.
Hence, the correct answer in this case is:
Description 1: "This need grew with the growth of the population" -: Skilled workers
Description 2: "Largest group of immigrants" -: Slaves
The main goals of Reconstruction in the South were to reestablish federal control in the South. Another important goal was to facilitate the transition of more than 4 million enslaved people from slavery to freedom. Another goal was to rebuild the infrastructure of the South and restore the seceded states to the Union.