Development of modern surgery,first vaccination,and stethoscopes.
Answer:
A. Lung Cancer
Explanation:
exercising helps strengthen the lungs
Studies show that our bone density decreases after the age of 301; meaning you can have frail bones without knowing. That's why a bone density scan is so important. Unfortunately, most people only find out they have bone density issues after suffering from a broken bone.
a substance that provides nourishment essential for growth and the maintenance of life.