Junk e-mail is also called:

• spam
• spoof
• sniffer script
• spool
Correct Option: A  [ spam ]

Remark:

The process in which living organisms are used to remove contaminants, pollution or other unwanted substances from soil or water is known as:

• Biotechnology
• bioremediation
• Biodegradation
• Biomagnification
Correct Option: B  [ bioremediation ]

Remark:

Which of the following is not a biofertilizer ?

• Rhizobium
• Mucor
• Azotobacter
• Anabaena
Correct Option: B  [ Mucor ]

Remark:

The study of hair and its diseases is known as:

• Penology
• Trichology
• Penology
• Pomology
Correct Option: B  [ Trichology ]

Remark:

Which gas in its solid state is also known as dry ice?

• Nitrogen
• Carbon dioxide
• Oxygen
• Hydrogen
Correct Option: B  [ Carbon dioxide ]

Remark:

Acid rain is caused by

• Humidity
• Pollutant gases
• Population explosion
• None of these
Correct Option: B  [ Pollutant gases ]

Remark:

Usually OMR sheets are used in most of the competitive examinations. The full form of OMR is :

• Optical Mark Response
• Optical and Magnetic Reader
• Optical and Magnetic Record
• Optical Mark Recognition
Correct Option: D  [ Optical Mark Recognition ]

Remark:

Which one is a water soluble vitamin?

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

Remark:

Ozone layer is situated in the upper regions of

• Troposphere
• Stratosphere
• Magnetosphere
• Mesosphere
Correct Option: B  [ Stratosphere ]

Remark:

Which of the following blood group is considered as Universal Donor ?

• A
• AB
• B
• O
Correct Option: D  [ O ]

Remark: