At a distance of 34 ft , an ionizing radiation source delivers 7.0 rem of radiation. How close could you get to the source and still have no biological effects? Express your answer to two significant figures and include the appropriate units.
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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."

it’s previous models   because when i picked that son of a gun’s answer it was wrong look for previous models because they might make it a different letter