What is the leading federal agency in the united states that protects human health and safety? what is the leading federal agency in the united states that protects human health and safety? united states department of agriculture (usda) american dietetic association (ada) centers for disease control and prevention (cdc) national institutes of health (nih)?

The correct answer would be option C, CDC, Centers for Disease Control and Prevention.

Explanation:

CDC stands for Centers for Disease Control and Prevention. It is a Health Institute for public of the United States of America. It is federal agency in United States which is under the department of Health and Human Services.

Centers for Disease Control and Prevention has its headquarter in Atlanta, Georgia.

The purpose of this federal agency is to provide health care facilities to the public of United States and controls the Diseases that may occur, and is also responsible for the disease prevention. The tasks of this agency is to protect people from the diseases and health threats.

answer:

d. because dr. laguardia selected a widely used measure, his study generalizes to has strong external validity. external validity has limited external validity. other applications of this measure.

the widely used measure that he applied to his experiment was the benton facial recognition test. it employed on to football players and as result, only players who suffered brain concussions did not pas this test. and although it has an external validity, it is limited because it isn't general to apply to other population.

the factors that the economies of the muslim empires prosper were:

1- land trade routes-located between three continents  

2- sea trade routes

trade contributed to the spread of muslim empires, and with that islamic culture led to a growing feeling of internationalism resulted in the transfer of technology, science, and other cultural forms.