Carcinogens is a substance that responsible for the causes of cancer, it may be a chemical substance such as some certain molecules in tobacco smoke. Cancer may cause by environmental agents, viral or genetic factors.
Use of computer in our life- Ans= Computer is use in office to type letter and keep record. It is used in bank to maintain money account and helps to withdraw money from our account at ATM booths. In the shop it is used to prepare bills. Eat keep record of the patient and to the treatment today in hospital. Computer helps in booking ticket and information about aeroplane at the airport and railway station. Record the criminal and match finger. In police department .
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Slide the screen down and than up you get a following screen tap on following buttom and enter you email id to notification.
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