The sex of a newborn baby is determined by the chromosome inherited from :

• the mother
• mother's mother
• the father
• father's father
Correct Option: C  [ the father ]

Remark:

Which of the following metals is the most ductile metal?

• Gold
• Aluminium
• Copper
• Tin
Correct Option: A  [ Gold ]

Remark:

Which among the following is respiratory pigment in human beings?

• Melanin
• Haemoglobin
• Rhodopsin
• Bilirubin
Correct Option: B  [ Haemoglobin ]

Remark:

Which of the following does not have red blood cells?

• Snake
• Peacock
• Frog
• Earthworm
Correct Option: D  [ Earthworm ]

Remark:

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

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

Remark:

The process by which energy is generated in the Sun is :

• Nuclear fusion
• Nuclear fission
• Both nuclear fusion and nuclear fission
• The burning of gases
Correct Option: A  [ Nuclear fusion ]

Remark:

The most abundant metal in the Earth crust is:

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

Remark:

Noise levels in residential areas should not exceed:

• 30 decibels
• 100 decibels
• 85 decibels
• 55 decibels
Correct Option: D  [ 55 decibels ]

Remark:

Sphygmomanometer is an instrument used for measuring

• Heart beat
• Vision of eyes
• Blood Sugar
• Blood Pressure
Correct Option: D  [ Blood Pressure ]

Remark:

Oxygen liberated during photosynthesis comes from:

• water
• carbon dioxide
• glucose
• Both carbon dioxide and glucose.
Correct Option: A  [ water ]

Remark: