A) 1956
B) 1962
C) 1973
D) 1948
**Answer: C) 1973
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Which country classifies nations by Gross National Income per capita among its classification criteria?
A) World Bank
B) IMF
C) FAO
D) UNDP
Answer: A) World Bank
The concept of “Inflation vs Unemployment” is represented by:
A) Okun’s law
B) Phillips curve
C) Say’s law
D) U-shape curve
Answer: B) Phillips curve
The capital of Canada is:
A) Toronto
B) Vancouver
C) Ottawa
D) Montreal
Answer: C) Ottawa
The Heaviest naturally occurring element is:
A) Uranium
B) Thorium
C) Plutonium
D) Radium
Answer: A) Uranium
What is the approximate percentage of oxygen in Earth’s atmosphere?
A) 12%
B) 18%
C) 21%
D) 25%
Answer: C) 21%
Which chemical is responsible for ozone layer depletion?
A) Carbon dioxide
B) Methane
C) Chlorofluorocarbons (CFCs)
D) Nitrogen oxides
Answer: C) CFCs
In nuclear reactors, which material is commonly used as a moderator?
A) Graphite
B) Boron
C) Cadmium
D) Lead
Answer: A) Graphite
The chemical used to preserve biological specimens is:
A) Formaldehyde
B) Chloroform
C) Acetone
D) Benzene
Answer: A) Formaldehyde
Which vitamin is essential for the synthesis of clotting factors in liver?
A) Vitamin A
B) Vitamin D
C) Vitamin E
D) Vitamin K
Answer: D) Vitamin K