Experts in this article, which all can i highlight? In an article should we underline words or a full sentence? Please can you give an example with this article

Dear Student,

Here are some questions and points which may help you in writing the article on 'smoking is injurious to health'. Try to answer these questions in yours own words.

1. How young people start smoking and later get habituated to it?
     They start it as adventure or by friend's force. Use words like; addicted, fond of, chain smokers,etc.  
2. How it affects the health?
    They end up with incurable diseases like cancer, heart and lung problems. Not only smokers but also people around them who inhale the smoke are also prone to these diseases.   
3. What all measures have been taken by government to ban smoking in public places, government offices, educational institutions in recent years? 
4. What kind of punishment is applicable for smokers if they smoke in 'No Smoking' areas?
    5.Add the point that, even manufacturers of cigarette print the warning 'Cigarette smoking is injurious to health' on the cigarette packs.   
4. How government is trying to educate the citizens, through various advertisement, about the harmful effects of smoking?
5. You can end it by writing; To be true, smoking gives nothing to the smokers. It is mere waste of money. It not only is injurious to their health but also their near and dear ones. 

​Hope this information will clear your doubts about the topic.
If you have any more doubts just ask here on the forum and our experts will try to help you out as soon as possible. 

Regards