The ability to apply the results of a published study to other clients or situations is called A. Statistical power

B. An efficacy study

C. Internal validity (specificity)

D. External validity (generalizability)

Smoking damages the respiratory system by inhalation of a foreign substance, that is absorbed and residue is left behind on our lungs sponge like substance. the gas that is inhaled also increase your blood pressure and dilates your blood vessels. also the process of inhaling and exhaling the smoke it causes irritation to the throat and mouth. smoking can cause lung cancer and other respiratory and circulatory diseases. 

The food that we are allergic to! for asking us here at hope this