PMS 2019 Past Paper MCQs, Everyday Science MCQs, PPSC Solved Past Papers MCQsHow many layers does Earth’s atmosphere have?A. 5 B. 6 C. 8 D. None of these Taj Mahal was built by Shah Jahan to immortalize his wife Mumtaz Mahal. Its construction spanned 22 years. When was the project commenced?Less than one percent of Earth’s water is fresh water but the oceans contain ______ per cent of the Earth’s water?
