Iii grammar : Word formation Prefixes

Task I. Answer the following questions.

1. 
   When did ICAO begin to address to the aspect of human factors?
   
2. 
   When and where was the first symposium on flight safety held?
   
3. 
   What can improve aviation safety?
   
4. 
   How many symposia on flight safety were held by ICAO?
   
5. 
   What was the purpose of the symposia and seminars?
   
6. 
   Where can the knowledge of human factors be applied?
   
7. 
   What is the ultimate goal of civil aviation?
   
8. 
   What is the ICAO flight safety and human factors programme?
   
9. 
   What for was the global aviation safety plan developed?
   
10. 
    Why is the flight safety and human factors programme so important?