Which of the following is the heaviest ?

• Proton
• Electron
• Neutron
• Neutrino
Correct Option: A  [ Proton ]

Remark:

The Kala-azar disease in man is spread by the bite of a:

• Culex Mosquito
• Phlebotomus sandfly
• Climex bed-bug
• Sarcoptes mites
Correct Option: B  [ Phlebotomus sandfly ]

Remark:

The pH of human blood is:

• 7.2
• 7.8
• 6.6
• 7.4
Correct Option: D  [ 7.4 ]

Remark:

Which among the following is respiratory pigment in human beings?

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

Remark:

What is the other name for Vitamin B₂ ?

• Haemoglobin
• Dextrose
• Thiamine
• Riboflavin
Correct Option: D  [ Riboflavin ]

Remark:

Check the odd term out:

• Internet
• Linux
• Unix
• Windows
Correct Option: A  [ Internet ]

Remark:

In 1643, an Italian named Evangelista Torricelli invented:

• Thermometer
• Barometer
• Ritcher Scale
• Bar Codes
Correct Option: B  [ Barometer ]

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.

Who invented Dynamite?

• J B Dunlop
• Alfred Nobel
• James Simons
• Peter Hargreaves
Correct Option: B  [ Alfred Nobel ]

Remark:

Who invented vaccination for 'small pox'?

• Sir Fredrick Grant Banting
• Sir Alexander Fleming
• Edward Jenner
• Louis Pasteur
Correct Option: C  [ Edward Jenner ]

Remark: