Person with following blood group are considered to be universal recipient
(A) A+
(B) B+
(C) AB+
(D) O+
(D) None of these
One of the main function of the earth's ozone layer is to
(A) Prevent global warming
(B) Filter out ultraviolet rays
(C) Absorb pollution
(D) All of the above
Basic metals can be converted into gold by
(A) Heating
(B) Beating
(C) Artificial nuclear radioactivity
(D) Chemical reaction
The famous book; Al ' Qanun was written by the Muslim scientist
(A) Jabar bin Hayyan
(B) Zakariya Al ' Razi
(C) Abu Ali Sina
(D) Abdul Qasim Majreeti
Which of the following elements is not present abundantly in earth's crust
(A) Silicon
(B) Radium
(C) Aluminum
(D) Carbon
Which woody raw material is used for the manufacture of paper pulp
(A) Cotton
(B) Poplar
(C) Bagasse
(D) Rice straw
Human population growth is greatest in developing countries because
(A) the birth rate is high in developing countries
(B) the death rate is high in developing countries.
(C) much of the population has already reached the child bearing age.
(D) most of the worldâs population lives in industrialized countries.
Radioactive isotope of Uranium used in Nuclear Bomb is
(A) 92 U 235
(B) 92 U 234
(C) 92 U 233
(D) 92 U 238