PUNJAB PUBLIC SERVICE COMMISSION WRITTEN TEST FOR RECRUITMENT TO THE POST OF PROVINCIAL MANAGEMENT SERVICE, ETC. BS-17 (2019) PROVINCIAL MANAGEMENT SERVICE General Knowledge mcqs Sun spots were first observed by which among the following? (A) Albert Einstein (B) Isaac Newton (C) Rene Descartes (D) Thomas Hariot 2. Lightening rod and Bifocal spectacles werei nvented by? (A) Benjamin Banneker (B) Thomas …

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