A. Carbon dioxide
B. Chlorofluorocarbons
C. Nitrogen oxides
D. Methane
Symbol of Iron is__________? A. Na B. FrC. Fe D. Zn
Non stick cooking utensils are coated with________? A. Black paint B. PVCC. Teflon D. polystyrene
Places where the temperature of air is above freezing point of the water, the precipitation will be in the form of ________ ? A. Hailstorms B. ThundersC. Rain D. Lightning
Aviation fuel for Jet Aeroplanes consists of purified________? A. PetrolB. Kerosene C. Gasoline D. Diesel
What is the percentage of water present in our brain? A. 85% B. 95% C. 97%D. 73% According to H.H. Mitchell, Journal of Biological Chemistry 158, the brain and heart are composed of 73% water, and the lungs are about 83% water. The skin contains 64% water, muscles and kidneys are 79%, and even the…
What is the chemical name of vitamin E? A. CalciferolB. Tocopherol C. Riboflavin D. Phylloquinone