The weight of a person on the surface of the moon will be about one-sixth of his weight on the surface of the earth. This is because

• The moon has no air.
• The moon has no water.
• The gravity of the moon is about half of the earth.
• The gravity of the moon is abouut one-sixth of that of the earth.
Correct Option: D  [ The gravity of the moon is abouut one-sixth of that of the earth. ]

Remark:

Which of the following is not correctly matched ?

• Becquerel : Radioactivity
• Alexander Flaming : Penicillin
• Louis Pasteur : Blood groups
• William Harvey : Blood circulation
Correct Option: C  [ Louis Pasteur : Blood groups ]

Remark:

Which of the following blood group is considered as Universal Donor ?

• A
• AB
• B
• O
Correct Option: D  [ O ]

Remark:

If we add salt to pure water, its boiling point will

• increase
• decrease
• remains same
• None of the above
Correct Option: A  [ increase ]

Remark:

Insulin is secreted by :

• Pancreas
• Liver
• Gall Bladder
• Kidney
Correct Option: A  [ Pancreas ]

Remark:

Which of the following animals is carnivorous?

• Elephant
• Horse
• Rhinoceros
• Tiger
Correct Option: D  [ Tiger ]

Remark:

How much blood does a man have in his body?

• 4 %
• 10 %
• 7 %
• None of these
Correct Option: C  [ 7 % ]

Remark:

The element common to all acids is :

• Oxygen
• Hydrogen
• Nitrogen
• Sulphur
Correct Option: B  [ Hydrogen ]

Remark:

Persistence of vision is the principle behind:

• Camera
• Binocular
• Cinema
• Periscope
Correct Option: C  [ Cinema ]

Remark:

What is the other name for Vitamin B₂ ?

• Haemoglobin
• Dextrose
• Thiamine
• Riboflavin
Correct Option: D  [ Riboflavin ]

Remark: