Three facts of natural radiation
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Radiation is energy. It can come from unstable atoms or it can be produced by machines. Radiation travels from its source in the form of energy waves or energized particles. There are actually two kinds of radiation, and one is more energetic than the other

Explanation:

People emit more radiation than their cell phones do.       Most of the radiation people are exposed to daily is not harmful because it is non-ionizing.      All people also have radioactive potassium-40, carbon- 14, lead-210, and other isotopes inside their bodies from birth.

question: which statement best describes the different properties of metals?

answer: they are shiny and bend without breaking.

since metals have certain characteristics properties, they include the following: they are ductile, malleable, shiny, hard, lustrous, flexible and they are good conductor of heat and electricity. so therefore, metals are not dull and they are not non-flexible as listed. instead, they are shiny and flexible.

hope this , have a good day. c;

the answers are a and c