Bauxite is an ore of_________?
Bauxite is an ore of_________?
A. copper
B. zinc
C. aluminium
D. iron
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Almost identical eclipses occur after 18 years and 11 days. This cycle is known as__________?
Almost identical eclipses occur after 18 years and 11 days. This cycle is known as__________?A. Partial Eclipse cycle
B. Total Eclipse Cycle
C. Saros Cycle
D. None of the aboveThe blueness of the sky is mainly due to _____________?
The blueness of the sky is mainly due to _____________?
A. The scattering of sunlight by air molecules
B. The presence of water vapor
C. Absorption of blue light by the air
D. Emission of blue light by the atmosphereWhich metal is non toxic in nature?
Which metal is non toxic in nature?A. Silver
B. Iron
C. Copper
D. GoldOther name of platelets _______?
Other name of platelets _______?A. Erythrocytes
B. Leukocytes
C. thrombocytes
D. None of theseTibia is a bone found in the ____________?
Tibia is a bone found in the ____________?A. Skull
B. Arm
C. Leg
D. FaceWhich of the following have maximum calorific value?
Which of the following have maximum calorific value?
A. Carbohydrates
B. Fats
C. Proteins
D. VitaminsFood contains a number of basic elements such as carbohydrates, proteins, fats and alcohol. These elements all produce different quantities of energy when burnt. The amount of energy produced when one gram of any of these elements is burned is known as its calorific value.
Food component
Energy density
kJ/g
kcal/g
Fat 37 9 Ethanol (drinking alcohol) 29 7 Proteins 17 4 Carbohydrates 17 4 Organic acids 13 3 Polyols (sugar alcohols, sweeteners) 10 2.4 Fiber 8 2