MCQ PracticeThe progressive warming up of the earth's surface is mainly due to theSubject: Chemical EngineeringTopic: Environmental Engineering In CeAAutomobile exhaustBBlanketing effect of CO 2 in the atmosphereCDe-forestationDThickening of ozone layerCorrect 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