The longest bone in the human body is:

• Ulna
• Humerus
• Femur
• Tibia
Correct Option: C  [ Femur ]

Remark:

Average distance of the earth from the Sun is:

• 150 Million km
• 15 Million km
• 90 Million km
• 900 Million km
Correct Option: A  [ 150 Million km ]

Remark:

The technique of 'DNA sequencing' was discovered by:

• H. G. Khorana
• Watson and Crick
• Frederick Sanger
• E. M. Southern
Correct Option: B  [ Watson and Crick ]

Remark:

Which of the following is an aquatic fern?

• Adiantum
• Dryopteris
• Salvinia
• Equisetum
Correct Option: C  [ Salvinia ]

Remark: Salvinia, a genus in the family Salviniaceae, is a floating aquatics with creeping stems, branched, bearing hairs on the leaf surface papillae but no true roots, named in honor of Anton Maria Salvini, Italian scientist.

The most abundant metal in the Earth crust is:

• zinc
• copper
• aluminium
• iron
Correct Option: C  [ aluminium ]

Remark:

dolomite is used in which field?

• Soil conditioner
• Pasteurization
• Dynamite
• Synthetic rubber
Correct Option: A  [ Soil conditioner ]

Remark:

Which of the following is the uppermost layer of the atmosphere?

• Stratosphere
• Mesosphere
• Ionosphere
• Exosphere
Correct Option: D  [ Exosphere ]

Remark:

In the eye colour vision is effected by the presence of

• Rods
• Choroid coat
• Cones
• Sclerotic coat
Correct Option: C  [ Cones ]

Remark:

Which one is a water soluble vitamin?

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

Remark:

Which among the following is a large spectrum Antibiotic ?

• Paracetamol
• Penicillin
• Ampicillin
• chloramphenicol
Correct Option: C  [ Ampicillin ]

Remark: