Fuel used in a Fast Breeder Reactor is _____________?

A. Uranium oxide
B. Uranium plutonium carbide
C. Uranium plutonium oxide
D. Uranium thorium oxide

Monsoon is caused by____________________?

A. Seasonal reversal of winds
B. Revolution of earth
C. Movement of clouds
D. Rise in temperature

Which of the following atmospheric layers help in radio communication?

A. Exosphere
B. Ionosphere
C. Troposphere
D. Stratosphere

A moderator is used in nuclear reactor in order to ?

A. Accelerate the neutrons
B. Slow down the speed of the neutrons
C. Increase the number of elections
D. Decrease the number of electrons

Sedimentary rocks are__________?

A. Porous
B. Hard
C. Rough
D. Brittle

Which one of the following is a non-metallic mineral?

A. Manganese
B. Magnesium
C. Gypsum
D. Bauxite

Ozone layer prevents ______________ radiation from entering the atmosphere?

A. Infra-red
B. Ultraviolet
C. X-rays
D. Gamma rays

The phenomenon of Aurora Borealis, the display of red and green lights in northern hemisphere is due to radiations from____________ ?

A. Ionosphere
B. Troposphere
C. Mesosphere
D. Stratosphere

Yeast is used in making bread because it produces____________?

A. Carbon dioxide
B. Sugar
C. Bacteria
D. Oxygen

Oasis is associated with___________?

A. Glaciers
B. Desert
C. Islands
D. Volcanoes