MCQ PracticeThe atmosphere is divided in four layers. The layer in contact with the surface of earth calledSubject: Biotechnology EngineeringTopic: Environmental BiotechnologyAStratosphereBTroposphereCMesosphereDIonosphereCorrect Answer: BPractice 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