PPSC Past Paper Excise & Taxation Inspector Excise & Taxation Department 2018 Solved MCQs, Everyday Science MCQs, PPSC Solved Past Papers MCQsThe Salinity of sea water is determined by the amount of common salt (sodium chloride) in _________ of sea water.?A. 1 Gram B. 10 Grams C. 1 Kg D. 10 Kg The blood vessels which return the blood to the heart are called?Which of the following Sultans establishment diplomatic, relations with China?