The weight of a body at the centre of the earth is:

• zero
• infinite
• same as at other places
• none of these
Correct Option: A  [ zero ]

Remark:

The moon takes __________ days to go round the earth once.

• 28 days
• 45 days
• 50 days
• 65 days
Correct Option: A  [ 28 days ]

Remark:

An endoscope is used by a physician to view the internal parts of a body organ. It is based on the principle of:

• refraction of light
• re?ection of light
• total internal re?ection of light
• dispersion of light
Correct Option: C  [ total internal re?ection of light ]

Remark:

One kilobyte is equal to:

• 1024 bytes
• 2048 bytes
• 1023 bytes
• 10000 bytes
Correct Option: A  [ 1024 bytes ]

Remark:

The red planet is

• Venus
• Saturn
• Mars
• Neptune
Correct Option: C  [ Mars ]

Remark:

Which of the following is an anaesthetic gas ?

• Nitrogen dioxide
• Nitrous oxide
• Nitric oxide
• Nitrogen
Correct Option: B  [ Nitrous oxide ]

Remark:

Which one of the following animals is not "warm-blooded"?

• Hen
• Tiger
• Bat
• Toad
Correct Option: D  [ Toad ]

Remark: frogs and toads are cold-blooded. This means their body temperatures change to match the temperatures of their environment.

Which one is the hardest form of carbon ?

• Coke
• Graphite
• Diamond
• Charcoal
Correct Option: C  [ Diamond ]

Remark:

The location of where an organism lives would be best described as its:

• niche
• habitat
• range
• biome
Correct Option: B  [ habitat ]

Remark:

ATM means:

• All Time Money
• Automatic Teller Machine
• Automated Teller Machine
• Any Time Money
Correct Option: C  [ Automated Teller Machine ]

Remark: