Angle of friction and angle of repose are:

• equal to each other
• not equal to each other
• proportion to each other
• none of the above
Correct Option: A  [ equal to each other ]

Remark:

Acid rain is caused by

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

Remark:

What is the S.I. unit of electric current?

• Volt
• Watt
• Ampere
• Ohm
Correct Option: C  [ Ampere ]

Remark:

What is the rarest element on earth?

• Radium
• Einsteinium
• Astatine
• none of these
Correct Option: C  [ Astatine ]

Remark: Astatine is a very rare radioactive chemical element with the chemical symbol At and atomic number 85

Ozone layer is situated in the upper regions of

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

Remark:

1 Gigabyte (GB) is equal to:

• 1024 bytes
• 1024 KB
• 1024 MB
• 1024 TB
Correct Option: C  [ 1024 MB ]

Remark:

Plasma membrane in eukaryotic cells is made up of:

• Phospholipid
• Lipoprotein
• Phospholipo-protein
• Phospho-protein
Correct Option: A  [ Phospholipid ]

Remark:

Gravitational force is maximum at which of the following place?

• At equator
• At tropic of cancer
• At tropic of Capricorn
• At poles
Correct Option: D  [ At poles ]

Remark:

The gas which destroys ozone layer is:

• Oxygen
• Argon
• Chloroflurocarbon
• Hydrogen
Correct Option: C  [ Chloroflurocarbon ]

Remark:

Anaemia is caused due to deficiency of:

• Iodine
• Iron
• Vitamin
• none of these
Correct Option: B  [ Iron ]

Remark: