Which one of the following is not vector quantity _______?

A. Acceleration
B. Displacement
C. Speed
D. Force

Copper can be converted into gold by ?

A. Artificial radioactivity
B. Heating
C. Electroplating
D. Chemical reaction

Max Planck received the noble prize in Physics in 1918 for his discovery of ?

A. Electron
B. Energy quanta
C. Photon
D. Positron

Humming bird belongs to a category called ?

A. Ectotherm
B. Endotherm
C. Exotherm
D. Heterotherm.

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 world’s population lives in industrialized countries.

Which woody raw material is used for the manufacture of paper pulp?

A. Cotton
B. Poplar
C. Bagasse
D. Rice straw

Rectified spirit contains alcohol about ?

A. 80%
B. 95%
C. 70%
D. 85%

Basic metals can be converted into gold by ?

A. Heating
B. Beating
C. Artificial nuclear radioactivity
D. Chemical reaction

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

Person with following blood group are considered to be universal recipient ?

A. A+
B. B+
C. Ab+
D. O+