What is the first artificial satellite to orbit Earth ?

• Sputnik I
• Explorer I
• Vanguard I
• Discoverer I
Correct Option: A  [ Sputnik I ]

Remark:

Which of the following contains maximum carbon dioxide ?

• Grasslands
• Forests
• Oceans
• Agroecosystems
Correct Option: C  [ Oceans ]

Remark:

Ringworm is a ___________ disease.

• bacterial
• protozoan
• viral
• fungal
Correct Option: D  [ fungal ]

Remark:

A fuse wire has :

• high resistance and high melting point
• low resistance and high melting point
• low resistance and low melting point
• high resistance and low melting point
Correct Option: D  [ high resistance and low melting point ]

Remark:

Which of the following adds/add carbon dioxide to the carbon cycle on the planet earth ?
1. Volcanic action
2. Respiration
3. Photosynthesis
4. Decay of organic matter
(Select correct answer)

• 1, 2 and 4 only
• 1 and 3 only
• 2 only
• 1, 2 and 3 only
Correct Option: A  [ 1, 2 and 4 only ]

Remark:

The acid present in the stomach of human beings is:

• HNO₃
• H₂CO₃
• HCl
• H₂SO₄
Correct Option: C  [ HCl ]

Remark:

Cobalt-60, commonly used in radiation therapy, emits :

• Alpha rays
• Beta rays
• Gamma rays
• X-rays
Correct Option: C  [ Gamma rays ]

Remark:

Which is the correct order to show units from largest to smallest ?

• Millilitres, decilitre, lite
• Litre, decilitre, millilitre
• Decilitre, millilitre, litre
• Litre, millilitre, decilitre
Correct Option: B  [ Litre, decilitre, millilitre ]

Remark:

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

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

Remark:

The largest artery in human body is:

• Aorta
• Capillary
• Vena cava
• Pulmonary vein
Correct Option: A  [ Aorta ]

Remark: The aorta is the largest artery of the body and carries blood from the heart to other part of the body.