The longest bone in the human body is:

• Ulna
• Humerus
• Femur
• Tibia
Correct Option: C  [ Femur ]

Remark:

Which of the following is a greenhouse gas

• Chlorofluoro carbon
• Carbon
• Calcium
• None of these
Correct Option: A  [ Chlorofluoro carbon ]

Remark: Chlorofluorocarbons (CFCs) are considered greenhouse gases due to their ability to trap heat in the Earth's atmosphere.

One kilometre is equal to how many miles?

• 0.84
• 0.5
• 1.6
• 0.62
Correct Option: D  [ 0.62 ]

Remark:

In organic farming:

• intercropping is not used
• manures are not used
• biofertilizers are not used
• chemical fertilizers are not used
Correct Option: D  [ chemical fertilizers are not used ]

Remark:

Thyroid gland is located

• near the heart
• at the base of the brain
• below the liver
• in the neck region
Correct Option: D  [ in the neck region ]

Remark:

Who discovered Lysergic acid diethylamide (LSD)

• Linus Pauling
• Alexander Fleming
• Albert Hofmann
• None of these
Correct Option: C  [ Albert Hofmann ]

Remark: A Swiss scientist.

The Bhopal Gas Tragedy was caused by :

• Phosgen gas
• Carbon monoxide
• Methyl isocyanate
• Chlorine
Correct Option: C  [ Methyl isocyanate ]

Remark: On 2–3 December, 1984 at the Union Carbide India Limited (UCIL) pesticide plant.

What chemicals are used in fire extinguishers used in houses and offices ?

• Water, potassium bicarbonate and fluorocarbon
• Water, calcium hydroxide and chlorofluorocarbons
• Water, potassium hydroxide and chlorobenzene
• None of these
Correct Option: A  [ Water, potassium bicarbonate and fluorocarbon ]

Remark:

Which of the following vitamins are water soluble?

• Vitamin-A & Vitamin-B
• Vitamin-B & Vitamin-C
• Vitamin-C & Vitamin-D
• Vitamin-A & Vitamin-K
Correct Option: B  [ Vitamin-B & Vitamin-C ]

Remark:

A network of computers and other peripherals that is confined to a relatively small space is call:

• Local Area Network
• Wide Area Network
• Global Network
• Intranet
Correct Option: A  [ Local Area Network ]

Remark: