4. Is radiation one of causes of cancer? _______________​

Ответ:

Объяснение:

) Some people even say that radiation from mobiles causes cancer.  2)Teenagers are among the biggset users of mobiles, and (texting) is creating a new laguange full of abbreviations such as HOW RU? In Japan Surveys show teenagers are reading lees and mobile use is Affecting the marks of secondary school learnes.

3) Сорян не знаю.