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.

Nitrogen is an essential constituent of all:

• Carbohydrates
• Fats
• Proteins
• Vitamins
Correct Option: C  [ Proteins ]

Remark:

Which of the following metals is the most ductile metal?

• Gold
• Aluminium
• Copper
• Tin
Correct Option: A  [ Gold ]

Remark:

As per Bureau of Indian Standards (BIS) for drinking water acceptable limit for total hardness as CaCO3 is

• 100 mg/l
• 200 mg/l
• 300 mg/l
• None of these
Correct Option: B  [ 200 mg/l ]

Remark:

Norman E. Borlaug is associated with

• Green Revolution
• White Revolution
• Pink Revolution
• Blue Revolution
Correct Option: A  [ Green Revolution ]

Remark: Norman E. Borlaug was awarded the Nobel Peace Prize in 1970 in recognition of his contributions to global food production.

Who discovered electromagnetic nature of light?

• Young
• Snell
• Newton
• Maxwell
Correct Option: D  [ Maxwell ]

Remark:

Which of the following is not a property of acids ?

• All acids have sour taste
• All acids are corrosive in nature
• For acidic solutions pH = <7
• Acids tum red litmus to blue
Correct Option: D  [ Acids tum red litmus to blue ]

Remark:

Which of the following is an operating system ?

• Floppy
• Windows Xp
• Oracle
• ROM
Correct Option: B  [ Windows Xp ]

Remark:

What is the name of first Indian Artificial satellite?

• Apollo
• Rohini
• Bhaskara
• Aryabhatta
Correct Option: D  [ Aryabhatta ]

Remark: launched by the Soviet Union on 19 April 1975 and built by the Indian Space Research Organisation (ISRO)

The motion of which particle through a metallic wire is called electric current?

• Electron
• Positron
• Neutron
• Photon
Correct Option: A  [ Electron ]

Remark: