A. Oxygen
B. Hydrogen
C. Carbon die oxide
D. Potassium

A. Carbon dioxide
B. Carbon monoxide
C. Nitrous oxide monoxide
D. Nitrogen peroxide
E. None of above

A. Carbohydrates
B. Proteins
C. Fats
D. Water

A. Hydrogen
B. Sulphur
C. Chlorine
D. Nitrogen

A. 100°C
B. 110°C
C. 120°C
D. 200°C

A. Mechanical
B. Electrical
C. Chemical
D. Solar

A. Argon
B. Neon
C. Helium
D. Carbondioxide

A. Nitron
B. Neon
C. Ammonia
D. Methane

A. Nitrogen
B. Oxygen
C. Hydrogen
D. Carbondioxide

A. Eggs
B. Citrus Fruits
C. Milk
D. Green Vegetables