1. Popular inventions of the 20th century is computer and call phones and personal digital assistants.
2. Because of modern technology teenagers little sleep
3. It is true. Modern technologies have become an integral part of teenagers life. Teenagers become addicted to the Internet.
4. Computer games result in lack of sleep and poor academic performance.
5.
+ You can find any strange video tutorial
+ You can find any information you need
+ On the internet you can get help with homework
- Information from the network leads to cheating
- lack of sleep