Laughing gas has chemical composition of following two elements ?
Laughing gas has chemical composition of following two elements ?
A. Nitrogen + Hydrogen
B. Nitrogen + Carbon
C. Nitrogen + Oxygen
D. Oxygen + Carbon
E. None of these
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Sensitive layer of the eye is?
Sensitive layer of the eye is?
A. Choriods
B. Sclerotic
C. Retina
D. Cornea
E. None of these -
The name of the common mineral salt present in sweat is ?
The name of the common mineral salt present in sweat is ?
A. Calcium Oxalate
B. Potassium Sulphate
C. Sodium Chloride
D. Iron Sulphate
E. None of these -
Study of life in outer space is known as ?
Study of life in outer space is known as ?A. Endobiology
B. Exobiology
C. Enterobiology
D. Neobiology
E. Micro biology -
Person with following blood group are considered to be universal recipient ?
Person with following blood group are considered to be universal recipient ?A. A+
B. B+
C. AB+
D. O+
E. None of these -
One of the main function of the earth’s ozone layer is to ?
One of the main function of the earth’s ozone layer is to ?A. Prevent global warming
B. Filter out ultraviolet rays
C. Absorb pollution
D. All of the above -
A light year is a unit of ?
A light year is a unit of ?
A. Time
B. Energy
C. Length
D. Mass -
Basic metals can be converted into gold by ?
Basic metals can be converted into gold by ?A. Heating
B. Beating
C. Artificial nuclear radioactivity
D. Chemical reaction -
The famous book; Al – Qanun was written by the Muslim scientist ?
The famous book; Al – Qanun was written by the Muslim scientist ?A. Jabar bin Hayyan
B. Zakariya Al – Razi
C. Abu Ali Sina
D. Abdul Qasim Majreeti -
Which of the following elements is not present abundantly in earth’s crust ?
Which of the following elements is not present abundantly in earth’s crust ?A. Silicon
B. Radium
C. Aluminum
D. Carbon