Answer: 20%
Step-by-step explanation:
Smoking is very dangerous for the health of the people. It decreases the overall health of the people.
The tobacco used in the smoking has different chemicals which is very harmful for the lungs.
Coughs, colds, asthma and wheezing starts. It can also lead to pneumonia, emphysema and in a more adverse case it can lead to lung cancer.
It can also cause chronic obstructive pulmonary disease. Almost 20 per cent of the deaths in adults are contributed by smoking.