Answer:
The social costs of cell phone usage are caused from the unhealthy addiction, interfering with ordinary activities in daily life as well as causing conflicts among family members or relationships in the society.
This is because people when uses phone for much time, they have the symptoms that an addict may have. They rely on phones to lift their moods. due to this dependence, when there is no phone in their sight, they may have anxiety or be in panic, which is the major cause for their bad attitude, temper influencing negatively their daily life and relationships.
In Crusoe's second trip, he characterizes as an adventurous person. It is an adventure that offers him an expense free travel with the captain, and toys and trifles worth 40 Euros for him to carry. He learns a lot from this free trip.
Never seen that question before I would say the correct adverb would be sank
Pronoun reference. It is not clear whether “he went home” refers to Jeff or his brother.