Effects of Smoking

The video demonstrates the harmful effects of smoking using an experiment. It shows how tobacco smoke affects the respiratory system by using a cigarette, mineral wool, and a universal indicator. The experiment reveals that smoke clogs the wool with tar and changes the indicator's color, indicating acidity. The video concludes with a discussion on smoking alternatives and public health measures to reduce smoking.

Explain the significance of the experiment in understanding the effects of smoking.

What steps have been taken to discourage smoking since its harmful effects were discovered?

What are some substitutes for cigarettes that have been developed to help smokers?