The answer for the picture put up is D, not C.
D is the correct answer.
From what i heard, when carbon monoxide is in a person's blood (smoker or non smoker) it can kill you, it is a sign of poison in your blood. With smokers it is worse because they are smoking something that has a high content of carbon monoxide which can cause heart problems, lung cancer, birth defects, etc. So thats what i think
Answer:
Questionnaires
Explanation:
They allow both government and outside researchers to obtain estimates of a variety of health related topic or issue among either the entire nation or specific demographic group of the population.
And the survey design is cross section.
Hi there!
The nose, diaphram, and lungs are all part of the respiratory system.
The respiratory system's job is to get you breathing; to get oxegon and nitrogen in your lungs and get carbon dioxide out.
Hope this helps!
