(A) Calcium
(B) Potassium
(C) Salt
(D) Vitamins
Which gas have harmful effects on the environment?
(A) Carbon Dioxide
(B) Carbon Monoxide
(C) Hydrogen
(D) Nitrogen
We get oil and gas from?
(A) Air
(B) Mountains
(C) Rivers
(D) Fossil fuels
When electron jumps from lower to upper shell/orbit it gains which kind of energy?
(A) Potential energy
(B) Kinetic energy
(C) Electrical energy
(D) Fossil energy
Diesel is the example of which kind of energy?
(A) Fossil energy
(B) Kinetic energy
(C) Potential energy
(D) None of the above
Quinine is the name of drug which is used to fight against?
(A) Typhoid
(B) Sugar
(C) Malaria
(D) All of the above
Quinine is obtained from Cinchona. Cinchona is the name of a?
(A) Chemical
(B) Plant
(C) Tree
(D) None of the above
Vaccine is used for to kill?
(A) Virus
(B) Disease
(C) Germs
(D) All of the above