The pigment which is responsible for blood clotting is:

• Fibrinogen
• Haemoglobin
• Glucose
• Blood Cells
Correct Option: A  [ Fibrinogen ]

Remark:

J J Thomson received the Nobel Prize in Physics for the discovery of ________.

• Protons
• Electrons
• Neutrons
• Positrons
Correct Option: B  [ Electrons ]

Remark:

Malaria is transmitted from one person to another by:

• Aedes Mosquito
• Culex Mosquito
• Anopheles Mosquito
• All of the above
Correct Option: C  [ Anopheles Mosquito ]

Remark:

Which one of the following is not an electromagnetic wave?

• Radio wave
• X-ray
• Visible light
• Sound wave
Correct Option: D  [ Sound wave ]

Remark:

Glaciers always melt first at the:

• top surface
• sides
• bottom
• middle surface
Correct Option: C  [ bottom ]

Remark:

The longest cell in animals is

• Nerve cell
• Hepatocyte (Liver cell)
• Blood cell
• Muscle cell
Correct Option: A  [ Nerve cell ]

Remark:

Which among the following is respiratory pigment in human beings?

• Melanin
• Haemoglobin
• Rhodopsin
• Bilirubin
Correct Option: B  [ Haemoglobin ]

Remark:

Sound waves having frequency less than 20 Hz are called __________ waves.

• Intelligent
• Inferior
• Infrasonic
• Instrumental
Correct Option: C  [ Infrasonic ]

Remark:

Persistence of vision is the principle behind:

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

Remark:

What is Air Quality Index ?

• It tells about sound pollution.
• It measures air pollution mainly sulphur content in the air.
• It measures ozone levels in the selected area.
• It checks the colour of the air.
Correct Option: C  [ It measures ozone levels in the selected area. ]

Remark: