what is cancer?how does it occurs?
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cancer is very dangerous it occurs by chewing gutka smoking by many there are many type of Cancer blood cancer
REDAKAI9999:
ekdm sahi vai GUTKA*
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Answer:
Cancer is a disease caused when cells divide uncontrollably and spread into surrounding tissues. Cancer is caused by changes to DNA. Most cancer-causing DNA changes occur in sections of DNA called genes.
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