Which of the following gases constitutes the major portion of the atmosphere by volume ?

• Oxygen
• Argon
• Nitrogen
• Carbon dioxide
Correct Option: C  [ Nitrogen ]

Remark:

Fruits of this plant are found underground

• Potato
• Carrot
• Groundnut
• Onion
Correct Option: C  [ Groundnut ]

Remark:

Olive ridley is related to:

• turtle
• cease fire violations
• terrorist killings
• migratory bird
Correct Option: A  [ turtle ]

Remark:

Which one is a water soluble vitamin?

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

Remark:

Which of the following is not correct ?
(a) Exercise does not help in managing psychological discomfort.
(b) Exercise increases cardio-respiratory fitness.
(c) Exercise reduces risk of diabetes.
(d) Exercise helps in managing bone health.

• Exercise does not help in managing psychological discomfort.
• Exercise increases cardio-respiratory fitness.
• Exercise reduces risk of diabetes.
• Exercise helps in managing bone health.
Correct Option: A  [ Exercise does not help in managing psychological discomfort. ]

Remark:

Which of the following is a ripening hormone?

• GA-3
• Auxin
• Cytokinin
• Ethylene
Correct Option: D  [ Ethylene ]

Remark: Ethylene is used for the controlled ripening of citrus fruits, tomatoes, bananas and many other fruits, vegetables and flowers.

The pale yellow colour of urine is due to the presence of which pigment?

• Urophyll
• Urochrome
• Chlorophyll
• Chloroplast
Correct Option: B  [ Urochrome ]

Remark:

Which of the following is a fossil fuel?

• Coal
• Solar energy
• Quartz
• Lava
Correct Option: A  [ Coal ]

Remark:

Sound travels fastest in

• Vacuum
• Steel
• Water
• Air
Correct Option: B  [ Steel ]

Remark:

Which of the following is the heaviest ?

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

Remark: