What type of study compares self-reports of physical activity with rates of illness and mortality?

Epidemiologic study (analytics)

Explanation:

   Epidemiologic study  is a study that focuses on the occurrence of a phenomenon in a  representative population or sample. It is based on observation  of facts and their variations.

DESCRIPTIVE: analyzes the distribution of the phenomenon as a function of  time, place and the characteristics of people through it  to identify possible risk factors and  its origin and mode of propagation. It raises hypotheses.

ANALYTICS: seeks to identify the relationship between the phenomenon and  various factors or conditions to which it may be attributed  behavior and distribution. Tests hypotheses of causal relationship  between exposure factors and events.

                                                        water

a colorless, transparent, odorless, tasteless liquid that forms the seas, lakes, rivers, and rain and is the basis of the fluids of living organisms.

                                                        halon  

any of a number of unreactive gaseous compounds of carbon with bromine and other halogens, used in fire extinguishers, but now known to damage the ozone layer.

                                                  dry chemical

extinguishing agent used on class a, class b, and class c fires.

                                                  carbon dioxide

a colorless, odorless gas produced by burning carbon and organic compounds and by respiration. it is naturally present in air (about 0.03 percent) and is absorbed by plants in photosynthesis.