Q: Blood Circulation was discovered by?

A: Mary Anderson

B: William Harvey

C: Virginia Apgar

D: Robert Feulgen



Correct Option: B  [ William Harvey ]

Remark:
William Harvey an English physician discovered the principle of the circulation of the blood through the body.


Q: Hydro?uoric acid is not kept in glass bottles because it reacts with:

A: visible light

B: sodium oxide of glass

C: aluminium oxide of glass

D: silicon dioxide of glass



Correct Option: D  [ silicon dioxide of glass ]

Remark:


Q: Which layer of the atmosphere is nearest to the surface of the earth?

A: Mesosphere

B: Thermosphere

C: Troposphere

D: Stratosphere



Correct Option: C  [ Troposphere ]

Remark:


Q: When a ship ?oats on water:

A: it displaces no water

B: the mass of water displaced is equal to the mass of the ship

C: the mass of water displaced is lesser than the mass of the ship

D: the mass of water displaced is greater than the mass of the ship



Correct Option: B  [ the mass of water displaced is equal to the mass of the ship ]

Remark:


Q: Which of the following statements is not correct ?

A: Rh+ person can donate blood to Rh+ person

B: Rh- person can donate blood to Rh- person

C: Rh- person can donate blood to Rh+ person

D: Rh+ person can donate blood to Rh- person



Correct Option: D  [ Rh+ person can donate blood to Rh- person ]

Remark:


Q: Who is the first man to land on the Moon ?

A: Aldrin

B: Neil Armstrong

C: Michael Collins

D: Gagarin



Correct Option: B  [ Neil Armstrong ]

Remark:


Q: Man first landed on the surface of the Moon in :

A: 1967

B: 1968

C: 1969

D: 1970



Correct Option: C  [ 1969 ]

Remark:


Q: The brain of any computer system is:

A: ALU

B: Memory

C: Control unit

D: CPU



Correct Option: D  [ CPU ]

Remark:


Q: Which of the following is a fossil fuel?

A: Coal

B: Solar energy

C: Quartz

D: Lava



Correct Option: A  [ Coal ]

Remark:


Q: What makes a lemon sour?

A: Tartaric acid

B: Oxalic acid

C: Citric acid

D: Hydrochloric acid



Correct Option: C  [ Citric acid ]

Remark:
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