Insulin is secreted by :

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

Remark:

Green leafy vegetable are rich source of :

• Citric acid
• Malic acid
• Folic acid
• none of these
Correct Option: C  [ Folic acid ]

Remark:

How many bones are there in each hand of an adult human being?

• 19
• 27
• 37
• none of these
Correct Option: B  [ 27 ]

Remark: 8 carpal bones (Wrist).
5 metacarpal bones (Palm).
12 phalanges (Fingers).
02 sesamoid bones at the base of the thumb.
total to 27 bones in each hand.
.
Adult Human Body-206,

Pure water freezes at a temperature:

• 47°F
• 32°F
• 0°F
• 19°F
Correct Option: B  [ 32°F ]

Remark: Ordinarily, the freezing point of water and melting point is 0°C or 32°F.

Onion is a modified form of

• leaf
• stem
• root
• None of these
Correct Option: B  [ stem ]

Remark:

Which among the following elements increases the absorption of water and calcium in plants ?

• Manganese
• Boron
• Copper
• Molybdenum
Correct Option: B  [ Boron ]

Remark:

What is the frequency range of audible waves?

• 20 to 20000 Hz
• 21000 to 24000 Hz
• 25000 to 30000 Hz
• 31000 to 40000 Hz
Correct Option: A  [ 20 to 20000 Hz ]

Remark: The audible range of sound for human beings extends from about 20 Hz to 20000 Hz (one Hz = one cycle/s). Children under the age of five and some animals, such as dogs can hear up to 25 kHz (1 kHz = 1000 Hz). As people grow older their ears become less sensitive to higher frequencies.

Heat transfer horizontally within the atmosphere is called:

• conduction
• convection
• absorption
• advection
Correct Option: D  [ advection ]

Remark:

A rocket functions on which of the following laws ?

• Newtons first law
• Newtons second law
• Newtons third law
• All of the above
Correct Option: C  [ Newtons third law ]

Remark:

The number of protons in an alpha particle is :

• one
• two
• three
• four
Correct Option: B  [ two ]

Remark: