Suppose Cary could run .5 (1/2) of a mile in 4:00 minutes, what is the amount of time it would take Cary to reach each distance? Hint: As you increase the distance, you also increase the time required to perform the exercise. Running 1 mile:
Running 1.5 miles:
Running 2 miles:

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. 

A. i may be wrong i really don’t know