Question

question 3
what percentage of lung cancer deaths are caused by smoking and secondhand smoke?
50% to 60%
less than 50%
about 70%
80% to 90%

Explanation:

According to medical and health research, a large proportion of lung cancer deaths are attributed to smoking and second - hand smoke. Studies show that approximately 80 - 90% of lung cancer deaths are caused by these factors.

Answer:

80% to 90%