PPSC Past Paper Junior Clerk in Punjab Public Service Commission 2019 Solved MCQs, General Knowledge MCQs, PPSC Solved Past Papers MCQsThe Copernicus project under which wind-sensing satellite “Aeolus” launched is a joint venture of?A. ISRO & JAXA B. EU & European Space Agency C. NASA & ISRO D. None of the above Which of the following is known as the Father of Railways?(-3)^3 = ?