In 2000, 25.7% of US men and 21.0% of women were smokers.
decreased gas diffusion in the alveoli
<span>Letter D. All of the above. The three given factors should be considered when designing a personal fitness program. In planning a personal fitness program, one must consider the goals they are aiming to complete, they must also consider the activities suited to for their goals, and lastly they must consider a variety of exercises for their personal fitness program.</span>
Unhealthy weight gain may cause heart disease, stroke, cancer, and many other diseases. Hope it helps! :) If you could vote my answer as the brainiest, that would be awesome! :)
Although action and reaction<span> forces are always equal and opposite to </span>each other<span>, they are acting on two </span>different<span> objects. Saying that the forces </span>balance each other<span>implies that they are adding up to equal zero. Forces are only added when they are acting on the same object, </span>not<span> on </span>different<span> objects</span>
