How were serfs different from enslaved persons? Serfs could purchase their freedom and enslaved persons could not

The children of serfs We’re free and the children of enslaved persons were not

Surfs worked for the Lord‘s protection and enslaved persons have no protection

the answer to fill in the blank in this question would be the word resource, it is defined as the money, material or people (since human resource is a very valuable good) that a company or a person has at disposition (meaning they can use the resource as they see fit), to be able to complete a task or achieve a goal.  

this is not a question its simply asking you to read and write a few sentences and   the question on the bottom its fairly easy, you can do this!

a direct vote in which an entire electorate is invited to vote on a particular proposal. this may result in the adoption of a new law.