Автор - podymakoinna23
Ответ:
1. If people did not travel the world, they would not know about the customs and traditions of other peoples.
2. If Alfred Nobel had not seen the results of his invention dynamite, he would not have founded his Foundation.
3. If a person has done nothing, he does not gain experience. 4. If there were no electricity, humanity would not enjoy the modern fruits of civilization. 5. If the steam engine had not been invented, there would not have been an Industrial revolution.