31) Bones in infants?
32) Bad conductor of electricity, good of heat?
33) Tea contains?
34) Ozone layer prevents from?
35) ___ is the process of direct conversion from a solid state to a gaseous state
36) Official languages of UNO
37) Headquarter of Asian Development Bank
38) Pakistan left CENTO in
39) First Muslim expedition sent by
40) Density of water is maximum at