Galileo and Newton had focused on investigating the Blank world. Other thinkers began to suggest that there also may be laws or principles that apply to the social world. What did they mean by social world?

I think what they mean by the social world is the internet which comprises of the social media and all sort. that aside hii

The answer is network.

formulating the initial idea for the policy

answer is c.

its main object was the establishment of "settlement houses" in poor urban areas, in which volunteer middle-class "settlement workers" would live, hoping to share knowledge and culture with, and alleviate the poverty of, their low-income neighbors.