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Everyday Science MCQs
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851.Percentage of water in an apple is____?
852.Periodontics deals with ____?
853.Permanent hardness of water can be removed by adding ____?
854.Permanent hardness of water due to sulphate of metals can be destroyed by the use of ____ ?
855.Permanent hardness of water is due to the presence of ____?
856.Permanent hardness of water may be removed by the addition of____?
857.Permissible noise level at Residential area during night time is:
858.Persistance of vision is the principle behind?
859.Person with following blood group are considered to be universal recipient ?
860.pH value of Blood or Red Blood Cells ?