Cancers are said to be caused by genetics, meaning the disease originated from the DNA structure. There are viruses that affect the DNA. Examples are hepatitis B virus, Epstein-Barr virus, herpes virus-8 and human papilloma virus. These are the DNA viruses that could cause cancer.
The Outer core is liquid and moving.
Earth's core is composed of Iron and Nickel.
Answer :
Option A is your answer
