1986: Which one of the following is the correct sequence of a food chain?
(a) Diatoms-Crustaceans-Herrings.
(b) Crustaceans-Diatoms-Herrings.
(c) Diatoms-Herrings-Crustaceans.
(d) Crustaceans-Herrings-Diatoms.
1987: When the Indian Muslim League was inducted into the interim government in 1946, Liyaqat Ali Khan was assigned the portfolio of
(a) Foreign affairs
(b) Home
(c) Finance
(d) Defence
1988: Epiphytes are plants which depend on other plants for
(a) food
(b) mechanical support
(c) shade
(d) water
1989: Which one of the following constitutional Amendments states that the total number of Ministers, including the Prime Minister, in the Council of Ministers shall not exceed fifteen percent of the total number of members of the House of the People?
(a) 90th
(b) 91st
(c) 92nd
(d) 93rd
1990: A boat which has a speed of 5 km/hr in still water crosses a river of width 1 km along the shortest possible path in 15 minutes. The velocity of the river water in km/hr is
(a) 1
(b) 3
(c) 4
(d)