Answer No 5
1- No, because they are very dangerous sports
( يقبل اى رأى شخصى للطالب )
2- To make the balloon go higher, the ballon pilot blasts hot air inside the baloon. To make the balloon descend, the air has to be left to cool.
3- because it requires skill and technique and a sense of adventure
4- c) ballonist
5- c) pilot and passengers