A. Reflection of light B. Polarization of light C. refraction of light D. Interference of light E. None of these
A. Cigarette smoking B. Using alcholo C. Injection of heroine D. Taking too much aspirin E. None of these
A. Prop him up if he falls B. Spread out his weight and reduce the pressure on the rope C.…
A. Electroplating B. Annealing C. Galvanization D. Vulcanization
A. - 2O°C B. - 10°C C. + 10°C D. + 20°C
A. Decomposition B. Respiration C. Digestion D. Fermentation E. None of these
Sulfur Dioxide and Potassium Nitrate Sulfur and Charcoal Nitrogen Oxide and Potassium Nitrate Sulfur Dioxide and Nitrogen Oxide