Final answer:
Cervical cancer is primarily caused by human papillomavirus (HPV), a sexually transmitted virus that interferes with normal cell division. This leads to the formation of tumors in the cervix.
Step-by-step explanation:
The cause of cervical cancer is human papillomavirus (HPV). More than 90 percent of cervical cancer cases are caused by HPV, which is a sexually transmitted virus. HPV infection can lead to the development of cervical cancer by interfering with normal cell division and allowing mutated cells to divide and form tumors.