Đọc và trả lời các câu hỏi

>Đọc và trả lời các câu hỏi<

There are many negative things of space tourism. Firstly, the equipment required for this means of travel is relatively expensive because money needed to produce aircrafts is far more than the amount for other vehicles. Secondly, space tourism causes environmental contamination. When operating, aircrafts release huge amount of exhaust fumes into the surroundings so the ozone layer will be seriously affected Finally, travellers would face the risk of problems related to health. Visiting a strange star is a potential danger because there are circumstances that we cannot control 
Questions:
1. Are there many negative things of space tourism?
2. Why is the equipment required for this means of travel relatively expensive?
3. What would travellers  face ?
4. Do you want to go space tourism?Why/ Why not?