World population crossed billion mark on _______.
May 11, 1987
June 11, 1987
July 11, 1987
August 11, 1987
World population crossed billion mark on July 11, 1987. World Population Day is observed on 11th July every year all across the globe.
30. June 25, 1982, was a Friday. What day of the week was June 25, 1987? (Note: 1984 was a leap year.)
Proteins are built up of
[CPMT 1981, 99; BHU 1987; CBSE PMT 2001;
MP PMT 1987, 96; KCET 1984]