Which of the 3 core functions of public health falls under the 10 essential public health service of "diagnosis and investigate health problems and hazards"?

Effective Policy Development .

Explanation:

The 3 core functions of public health are

And one of the 10 essential public health services is an Effective Policy Development .

Effective policies are the way the system has to define a preset course of action in several specific situations, thus, its vital importance in the Public Health Service.

world war i had a devastating effect on german-americans and their cultural heritage. up until that point   german-americans, as a group, had been spared much of the discrimination, abuse, rejection, collective mistrust experienced by so many different racial and ethnic groups in the history of the united states. indeed, over the years, they had been viewed as a well integrated and esteemed part of american society. all of this change with the outbreak of war.  

d

explanation:

it establishes america’s basic laws and fundamentals to its citizens.