(A) agriculture
(B) industry
(C) defence
(D) transportation
The answer is: (A) agriculture
Author: CSS MPT
Urea is produced commercially in vast amounts from
(A) ammonia and carbon dioxide
(B) ammonia and oxygen
(C) nitrogen and carbon dioxide
(D) nitrogen and oxygen
The answer is: (A) ammonia and carbon dioxide
Petroleum is a fossil fuel that is a mixture of many
(A) salts
(B) hydrocarbons
(C) hydroxides
(D) acids
The answer is: (B) Hydrocarbons
Urea is widely used in fertilizers as a source of
(A) biomass
(B) sulfur
(C) phosphate
(D) nitrogen
The answer is: (D) nitrogen
Which vitamin is important for normal vision?
(A) A
(B) C
(C) D
(D) B complex
The answer is: (A) A
About what percent of the human adult body weight is water?
(A) 20%
(B) 40%
(C) 60%
(D) 80%
The answer is: (C) 60%
Which blood component helps the body fight infections and other diseases?
(A) White Blood cells
(B) Red Blood Cells
(C) Platelets
(D) Plasma
The answer is: (A) White Blood cells
Which blood vessels carry blood towards the heart?
(A) Arteries
(B) Capillaries
(C) Veins
(D) none of these
The answer is: (C) Veins
Which blood vessels carry blood away from the heart?
(A) Arteries
(B) Capillaries
(C) Veins
(D) none of these
The answer is: (A) Arteries
Which element is essential for the formation of haemoglobin?
(A) Iron
(B) Calcium
(C) Magnesium
(D) Sodium
The answer is: (A) Iron