In world war 1 What did the British develop to help overcome the layout of the trenches

The code of ethics of the sets forth certain basic standards that sociologists must follow in conducting research. question 14 options:

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.

What is grievance 28 on the declaration of independence explained in simpler words? plz