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A. Liquid fuels
B. Coal
C. Hydroelectric power resources
D. Atomic energy
Answer
Answer
C. Hydroelectric power resources
Submitted by: Toheed Ahmed
The hormone that increases the rate of heart beat and blood pressure after shock in a person is
A. Adrenalin
B. Pancreatin
C. Throxin
D. Gastrin
Answer
Answer
A. Adrenalin
Submitted by: Toheed Ahmed
All the following contribute to pollution except
A. Automobiles
B. Hydro-electric power project
C. Nuclear power plants
D. Thermal power plants
Answer
Answer
B. Hydro-electric power project
Submitted by: Toheed Ahmed
Rainbow is produced by tiny rain drops suspended in front of sun rays as a result of
A. Refraction and dispersion
B. Reflection and interference
C. Reflection, refraction and dispersion
D. Interference
Answer
Answer
C. Reflection, refraction and dispersion
Submitted by: Toheed Ahmed
Speed of sound is greater in solids than in liquids because
A. The solids have high elasticity
B. The atoms in solids are regularly arranged
C. The liquids have high elasticity
D. The atom in liquids are closely packed
Answer
Answer
A. The solids have high elasticity
Submitted by: Toheed Ahmed
Amnesia is related to ________?
A. Loss of Teeth
B. Sleeping sickness
C. Loss of hearing
D. Loss of memory
Answer
Answer
D. Loss of memory
Submitted by: Toheed Ahmed
Which of the following is the correct sequence of evolution?
A. Frogs – Birds – Reptiles — Fishes — Mammals
B. Birds — Frogs — Reptiles — Mammals — Fishes
C. Fishes — Frogs — Reptiles — Birds — Mammals
D. Fishes — Reptiles — Frogs — Mammals — Birds
Answer
Answer
C. Fishes — Frogs — Reptiles — Birds — Mammals
Submitted by: Toheed Ahmed
The plant which bears fruit only once in its life time is
A. Banana
B. Grapes
C. Date
D. Papaya
Answer
Answer
A. Banana
Submitted by: Toheed Ahmed
A cyclist negotiating a bend, tilts from the vertical direction because of
A. Gravitation and centripetal force
B. Gravitation and centrifugal force
C. Friction and centrifugal force
D. Gravitation and friction
Answer
Answer
C. Friction and centrifugal force
Submitted by: Toheed Ahmed
The phenomenon of mirage is due to
A. Change in refractive index of air with change in temperature
B.Polarisation of light on reflection
C. Total internal reflection
D. Absorption of light by air at higher temperature
Answer
Answer
C. Total internal reflection
Submitted by: Toheed Ahmed