Which of the following statements is true
a. you're exposed to nuclear radiation everyday
b. most of the nuclear radiation you're exposed to in the environment is man-made
c. naturally occurring nuclear radiation is called background decay
d. all natural radiation is at a level low enough to be safe

a plasma is a warm ionized gasoline consisting of approximately equal numbers of definitely charged ions and negatively charged electrons. the characteristics of plasmas are notably unique from the ones of ordinary neutral gases in order that plasmas are considered a awesome "fourth kingdom of remember."

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