1. He was fired because his performance at work was poor.  (result in)

2.  The nurses went on strike because they were dissatisfied with working conditions. (lead)

3.  There was a scandal in the Prime Minister’s office and the police started a full-scale investigation as a result.  (trigger)

4. Communication on the internet is very fast; therefore, it is much easier to conduct international business.  (facilitate)

5. Many websites have been created in recent years because Facebook is so popular. (give rise)