A box contains 4 red pens, 3 blue pens, and 5 black pens. A pen is selected at random, not replaced, and then a second pen is selected. Find probability of: P(red, then blue)
Yes the lungs are composed of tiny air sacs called alveoli
Answer:
Maybe because they don't think about the everyday germs that they carry.
Explanation:
Answer:
A. Lung Cancer
Explanation:
exercising helps strengthen the lungs