Ответ:

1.The popularity of social networking sites such as Vkontakte,Facebook,My space,and Classmates has risen more than four times from 2005 to 2009.

2. Social network promote Communication with friends and family, They give people necessary And useful computer skills and teach dance to Express their ideas in the clear way.

3. Another thing is that sites let people Create new relationships and reconnect with old friends

4.In every way,more communication,even online,makes connections stronger

5. Experts say that teenagers spend about nine hours every week on social networking sites.

6.They don’t worry that their personal information and photos could be open to lots of people.

7.Psychologists say that social networking sites can have serious disadvanties

8.It is hard for children to have real conversations and make friends

9.They become selfish personalities and lose interest in real life.

10. Parent spend less time with their children and all meme bees of the family spend less time with each other because they’re using the internet instead of communicating in person.

Объяснение: