Answer:
High-energy radiation, such as x-rays, gamma rays, alpha particles, beta particles, and neutrons, can damage DNA and cause cancer. These forms of radiation can be released in accidents at nuclear power plants and when atomic weapons are made, tested, or used.
C. reflex also called Autonomic reflex.
It isn't literal. It's a war quote meaning if you put in good and hard effort, it can save your life. In my oppinion, that can relate to more situations and circumstances in life though.
