Which of the following statements is true? question 2 options: you are exposed to nuclear radiation every day. naturally occurring nuclear radiation is called background decay. most of the nuclear radiation you are exposed to in the environment is man-made. all natural radiation is at a level low enough to be safe.

Out of the options given above, the statement that is true is this: YOU ARE EXPOSED TO NUCLEAR RADIATION EVERYDAY.
Man is naturally surrounded by many natural  and artificial radioactive sources which give out radiations on a daily basis. Although most people believe that the natural radiation are at levels that are not dangerous, scientific studies had found out that this is not true; some of the radiations are given out at the rate that are harmful to humans.

The molecules contain like 54 of water 

The answer is the first option just took the test