MCQ PracticeWhich of the following is a natural radioactive form, produced in the atmosphere?Subject: BiologyTopic: Genetics And EvolutionARadioactive carbonBRadioactive argonCRadioactive rubidiumDRadioactive strontiumCorrect Answer: APractice QuizBack to MCQsRelated MCQsCurrent flows in a circuit whenEighttenths coulomb passes a point in 4 s. The current in amperes isThe unit of electrical charge is the