I don't understand this can anyone help

How did european immigrants of the late 1800s change american society

Click on  the link  to view information gathered by the organization keep america beautiful. read "the costs of american littering" to find three negative effects of litter in local communities.  based on your research, what are the negative effects of litter in local communities? check all that apply.litter cleanup is very expensive.litter has decreased since 1969.litter is a constant community problem.litter causes property in the community to be less valuable.litter contaminates water and has other environmental consequences.

This was an act of continental congress which initially organized the first united states territory and was to be the basis for governing how the united states would expand westward.