What can a person do to reduce the risk of lung disease

Don't smoke, eliminate other environmental air contaminants (like polluted home environments), test your home for radon, exercise regularly.

absolute strength refers to the maximum force exerted by a body irrespective of body size. relative strength on the other hand is the force exerted by a body in relation to muscle size or body weight.

so the answer is: c. absolute strength measures strength regardless of your body size, while relative strength measures strength adjusted for your weight.