Mobile phones
The Disadvantages of mobile phone are that mobile phone are expensive and very sensitive so you must protectit with a case. Sometimes the reception is poor in some areas, limiting your connectivity (you can't talk underground or on planes). Mobile phone its dangerous if we using phone when we driving. Can be hard for older people
RULES IN OUR SCHOOL
I THINK
The world without phones would be more social and healthy. But in the modern world smart phones are for help people to be in touch with family and friends.Smart phones have a lot of good aplication to help people like calculator, weather, email, games for free time, books,...